A multitude of issues

[lcann25]

Hello everyone.  I'm a 42 year old male and I've been relatively healthy, but it seems as soon as I hit 40 things started going downhill.  I developed Achilles tendonitis in my left leg, which after all kinds of physio therapy and stretches has still not been resolved 2 years later. I am now developing the same issue in my right leg, and also tennis elbow in my left elbow. Dr did all the bloodwork and said all was normal, and just prescribed me Celebrex for pain, which I am not taking, I'm just living with the pain because I know taking NSAID's long term is not good. Now for about the last 2 months, I feel something strange by my right tonsil, almost like a popcorn husk is caught there or something.  This will come and go, Dr. prescribed me amoxicillin for this, which did nothing, so again I'm just living with it.  Now, fast forward to 3 days ago, I randomly broke out in a rash/hives all over my torso and backs of my hands. Went to emergency, they put me on Benadryl and 4 days worth of prednisone.  I'm starting to get very worried here that all these issues are somehow connected to something they are missing. Hoping for some advise on this forum as to what to do next, as I am at a complete loss and frankly starting to get scared of what's happening to me.