Sorry to hear about this. I know that some doctors are prescribing Pregabalin or Gabapentin for neuropathic pain. They used to be more common as prescriptions for epilepsy, but now they are quite often used for nerve pain due to diabetic issues or fibromyalgia. You don't need a specific diagnosis of any of those things to get it if your doctor thinks it could help general pain. However, they aren't to be taken lightly so you'll probably decide against them (they can have side effects, eg reduce metabolism) but I know someone who has found them very helpful for migraines so might be worth knowing about if you get desperate.

It may not prove particulary relevant because it sounds like you're more sensitive to pressure in general, but it might be worth trying any herbal rinses or products designed to reduce inflammation on the scalp - if there is a scalp/skin issue playing a part then maybe a trichologist or dermatologist would be worth seeing.
UK based wavy

Mostly waves, but curls and straight bits too!
Fine to medium, high porosity, medium density, very low elasticity
Highlights damage (growing it out), seems to like protein and need lots of moisture.

Cleanse - CJDF, trying out low poos ; Co wash- Uk chemist brands, Urtekram Rose or Aloe, Hairveda Amala Cream Rinse; RO - varies, Tigi Moisture Maniac, Desert Essence Coconut ; Leave in - Keracare natural textures; Sealant - argan oil
Trying out new things, still looking.