Soupcxan, it sounds like you've tried nearly everything. This may sound odd, but instead of adding more treatments, devices, prescriptions, have you thought about what you could remove from your life?
I assume you're not a smoker, but that would be the most obvious one. My friend had terrible food allergies manifesting in dermatitis. He spent over two years systemically removing certain foods from his diet and he only recently triangulated to the source of the problem, which is now entirely resolved.
The things you can remove aren't limited to food and drink (e.g., sugary drinks, alcohol), but also other routines or even chores (exposure to household chemical or allergies from yardwork). You mention depression too and there are studies that link habits like gambling (or even porn) to depression. Perhaps the pain is related to something like that.
I'd bet your wife and son love you immensely. Keep that in mind. It will help!
Not a smoker, and I drink less lately, when I am dealing with the pain I don't like to add anything on top of that.
If there is a pattern I just cannot figure it out. Doesn't seem to matter whether I do more chores or less, more yardwork or not. I have cut back on nightshade foods lately but starting to go through elimination diets of everything under the sun would be difficult.
If it were more of an inflammatory response I don't know why I wouldn't have problems in my other joints/muscles. It has to be at least partly mechanical/physical given that the pain confined to one area.
I just don't get it...recent activity...although I had more "good" days clustered together here than I usually do (which would be great if this turned into a trend of % more good days, but I have no idea):
Friday - woke up ok, did stretches/light exercises, went to daycare/work, low to no pain most of the day. worked out at lunch. a good day
Saturday - woke up with mild ache, did stretches/light exercises, ached all day until the evening, relented
Sunday - woke up ok, did stretches/light exercises, felt good all day until the evening, started hurting again
Monday - woke up hurting, did stretches/light exercises, daycare/work, continued to hurt all day, pain got worse by lunch and then relented a bit after that. worked out after lunch. overall, a bad day
Tuesday - woke up with mild ache, did stretches/light exercises, pain let up, daycare/work, low pain most of the day but was moving around the office most of the day and presenting in several meetings which seems to distract my brain from the pain. a good day.
Wednesday - woke up with mild ache, did stretches/light exercises, went to dentist then daycare/work, off and on discomfort throughout the day. Not as bad as Monday, not as good as Tuesday.
Have you tried kinesiotape? I've seen some fantastic results with it. (Sorry if you already mentioned it.)
Haven't mentioned it but I did go to PT in 2014 where they taped me for a month...didn't notice any difference.