<s>[INST] I had a head jnjury 3 yrs ago lost consciousness for a while parademics were called against advice did not go hospital day after severe concussion for 2 days went back to work after 4 trips to docs who were not concerened finally got one to refer me for a mri results were i have a archnoid cyst and bleed/stroke on brain doctors didnt ask me back for follow up i still feel awful still dizzy my nan died of stroke jn her 60s i am 50 next year should i be worried? [/INST] Hello and welcome to ‘Ask A Doctor’ service.  I have reviewed your query and here is my advice. If you do not have any symptoms that is directly related to central nervous system and nothing came out in MRI, and even the neurophysician did not say anything then then there is nothing to worry about.If it would have been something wrong then you would have been informed accordingly so it is nothing to worry, as long as the accident is concern it is better to keep the eye open.  Hope I have answered your query. Let me know if I can assist you further.Regards, Dr. Akhtarhusain Shaikh </s>