Bobby78,

sorry to hear you are not doing well.
Assuming you excluded all the "other" possible causes of pain (spinal, vascular, neurological disease etc), the pain must be caused by a nerve injury due to compression and/or overstretching.
From what I found out (the hard way), no amount of PT and stretching is going to help as it just causes more compression and stretching.

For me to start making any progress, I needed to give the nerves a chance to calm down first.
Which meant no computer work (eliminate the original cause), not doing movements which cause overstretching (like reaching overhead), relaxation and breathing exercises (to relax neck/shoulder muscles) multiple times per day. Most important is not to do anything that increases pain.
After a couple of months my pain level was down and I was able to resume some stretching/strengthening.