Less power and tiredness. Me what to do.

I have been having a turbulent month. It started of me having pain in my arm and side of chest ,which really freaked me and I thought I am having some very problem so I had an eco test , ecg , tmt test and all of them came out normal , but after that I was sure that I do not have heart problem then I started having pain in part of my head and eye so I had an ncct head which came out normal and neck x ray which was also normal . 2 days back I went to see a eye specialist and he said that I has eye infection and gave me drops for 6 says and now my eye problem is gone but still when I go out for 1 hour I really feel stressed and tired and I was a kind of person who was very active. I am really worried and also sometimes I suddenly start feeling anxious and my face starts to warm up and my ears also starts to turn red however this stops after 5 mins . I am really tense and wants to be normal. Pls advise me what to do.