<s>[INST] Hi , for a few years now I constantly now and then have a weird tightning sensation which seems to be feeling like its on my heart as if someone was squeezing and tighning it , It does feel like its more to the left side of my chest and I understand the heart is directly in the middle of your chest , but I can honestly say it feels as if it is the heart , I am getting worried as it seems to be getting worse , I try to go to my gp but all I ever get told is it cannot be my heart etc ..... What do you think this sensation could be ? [/INST] Thanks for asking your query completely understand your problem this tightening sensation can be due to a variety of cause in which gastritis/peptic ulcer is common cause in young age and that can be dealt by taking some proton PUM inhibitors like pantoprazole, if you're worrying too much u can have an echocardiography (ECG) done and consult a cardiologist which would be the best option and that will end your worries. Thanks may god bless you with good health if you have more questions feel free to ask </s>