<s>[INST] Hi i have a lump on the right side of my neck just under my jaw that moves around and is soft to touch, i have suffered from toothache for a few weeks and also had blood tests done as i wasnt feeling to good which showed i am low in vitamins and was given folic acid tablets do u know what could be causing this lump [/INST] Welcome to Chat Doctor .1. Most likely its sailoadenitis (salivary duct) when there is any obstruction to the duct due to calculus may cause the lumpy feeling.2. Other possible causes are submandibular lesion, lymph nodal enlargement and lastly the mandibular cystic lesion (but It's hard in touch).3. If you are my patient I would examine and ask for an ultrasound scan to evaluate the nature of lump, source of existence and extensions.4. Lymph nodal enlargement is seen in case of any underlying medical conditions.5. Recommend you to get an appointment with your doctor and get the needful investigations and treatment done. Hope it helps you. Wish you a good health. Anything to ask ? Do not hesitate. Thank you. </s>