A woman who suffered stomach cramps and bleeding for two years was horrified to be told it was due to a tumour the size of a golf ball in her cervix. Kerry Hamilton was finally diagnosed with leiomyosarcoma, a rare cancer of the soft tissue normally found in women over 50. At just 34, she was forced to undergo a hysterectomy and was devastated at the thought of not being able to have children. She now wants to raise awareness about rare cancers like leiomyosarcoma, so that other women with seemingly 'everyday' symptoms like cramps visit their GP. Kerry Hamilton, 34, had stomach cramps, bleeding and irregular periods for two years. Doctors finally discovered she had a tumour the size of a golf ball growing in her cervix . Ms Hamilton, an education consultant, began experiencing odd symptoms in 2009, when she flew to South Africa to volunteer at a lion research centre for a month (pictured) Since her time in South Africa (pictured) she had experienced spotting in between her periods, longer periods than normal and stomach cramps . Ms Hamilton, from Birmingham, said: 'I'm on a bid to raise awareness about rare cancers and the symptoms that people might ignore - without realising that it is important to listen to their body. 'The kind of cancer I had - despite it being in my cervix - would not have showed up on a smear test. 'So it's important to visit your GP if you're concerned about anything, as well as always going for routine tests.' Ms Hamilton, an education consultant, began experiencing odd symptoms in 2009, when she flew to South Africa to volunteer at a lion research centre for a month. A week before she was due to fly home she fell violently ill with stomach cramps. She spent seven days in hospital where a local doctor told her that she was suffering with a cyst on her ovaries that had burst. Leiomyosarcomas are cancers that develop in a type of muscle tissue called smooth muscle. These muscles are found in the walls of muscular organs like the heart and the stomach. They are rare and usually only affect people over the age of 50, but they can start anywhere in the body. They most commonly start in the walls of the womb, the limbs and the digestive system. People with early leiomyosarcoma often have no symptoms. Possible . symptoms to develop as the cancer advances include a lump or swelling, . abdominal bloating, swelling or pain and a change in menstruation. Source: Macmillan Cancer Support . Over the next two years she returned to the park to work as a guide and a ranger and later returned to the UK where she started working as an educational consultant. When she returned, she went for a routine smear test in 2011 and was given the all clear. Ever since being hospitalised in South Africa she had experienced spotting in between her periods, longer periods than normal and stomach cramps. By last summer these symptoms had become worse and intense pain and lots of bleeding. Her GP suggested it was a hormonal problem and that she go on the contraceptive pill to try and control it. But as she was single, Ms Hamilton didn't see the point of using a contraceptive and felt uneasy about taking hormonal treatment. She also didn't want to ignore the signals her body was giving her, and so never took the contraceptives that were prescribed. It was only in January this year, when she was called for her next smear test, that she was finally diagnosed. The nurse due to carry out the smear said her cervix was so irritated that it was impossible to conduct the test. Ms Hamilton, pictured in 2009, became aware something was seriously wrong when a nurse couldn't perform a smear test on her as there was so much inflammation . Doctors diagnosed Ms Hamilton with a leiomyosarcoma  - a cancer of the soft tissue, the muscle, fat, blood vessels, or any of the other tissues that support, surround and protect the organs of the body . She then broke the devastating news that she suspected Ms Hamilton had cancer. After an MRI scan, doctors confirmed she had leiomyosarcoma and would need a hysterectomy to save her life. A leiomyosarcoma is a cancer of the soft tissue, the muscle, fat, blood vessels, or any of the other tissues that support, surround and protect the organs of the body. Ms Hamilton's was found in the walls of her cervix. Only about 3,300 new cases of soft tissue cancers are diagnosed each year in the UK, and they mainly affect people over the age of 50. Ms Hamilton described the shock of being told she may never be able to become pregnant naturally. 'This was going to be the year I was going to go out and meet someone and start to think about having a family. 'But now I wouldn't be able to carry a child. 'I couldn't believe that I had cancer in my cervix for all that time.' Ms Hamilton underwent a hysterectomy at just 34-and was devastated at the thought of not being able to carry a child. But she remained positive, saying 'there is somebody else going through much worse' She underwent egg collection so that one day she might have a child that is biologically hers. On March 19th this year she underwent the operation to remove her womb – and the tumour – and is now recovering at home. While many women would become disheartened after such an ordeal, Ms Hamilton said she believes . She said: 'Luckily I am a naturally positive person, and I just think that there is somebody else going through something much worse than me. 'When I was finally diagnosed it was more of a relief than anything to know what was wrong. 'It was when I was told that I would need a hysterectomy that when it hit me, and I became really upset.' Even before she had cancer, Ms Hamilton ran the Race for Life for Cancer Research UK, and this year raising money for the charity will be more meaningful than ever. She said: 'I have done the race the last two years, and I always said I would do it every year, so this year I'm on a mission. 'I've already raised £1,600 which is so amazing and humbling.' To donate to Ms Hamilton's fundraising page, please  visit: www.justgiving.com/kerryhamilton4 .
Kerry Hamilton had very rare cancer called leiomyosarcoma in her cervix .
Had been told her symptoms were due to hormone problems .
Was forced to undergo a hysterectomy but managed to freeze some eggs .
Now wants others to be aware of 'everyday' symptoms and get checked out .