have you had a good going over by an internal med specialist. (Your primary care guys can send you). Im not doing any diagnosing but you have several classic symptoms of Lyme disease, including bacterial infections due to compromised immune system, pancreatitis -like symotoms, general focused aches. You need to get to the bottom of your med issues cause it sounds like the depression could also be a Lyme symptom.
I had a Lyme event just a few years ago and it left me with several symptomologies that took about 2 yers to get over and then I got a bad pancreatitis and everyone said that this could NEVER be associated with a LYME disease bag of stuff (Until I read an article by some teaching physicians who were doing a statistical breakdown on the mass of symptoms that can occur)
Do you recall ever bei ng bitten by a very tiny tick?