HI,Dear,Welcome to HCM.
Based on the facts and data of your query,you Seem suffer from following causes-
Could be just post-exertional hypervascularization/or could be a sign of some SOL in thorax.As your are not
obese,abdominal cause is ruled out.
There are many causes academically,which would increase your
anxiety only,as these are not the possibilities with your case.
Chest CT with Chest Surgeons opinion would resolve your issues.
Don't worry till then.
So Other causes need to be ruled out by
Second opinion from your doctor which would help you to plan treats in future.
Hope this would help you to resolve your sever anxiety.
Welcome for any further query in this regard
Will appreciate writing your feedback review comments,to help the needy patients like you at HCM.
Good Day!!
Dr.Savaskar,
Senior Surgical Specialist
M.S.Genl-CVTS