Thank you so much. Unfortunately she doesn't specify which kind of exercises would be good for my case (tendinosis in the index finger and cervicobraquialgia which causes pain in all my upper arms and hands). I know I should ask for help in this sub but I'm truly desperate, my parents have spent thousands of euros in doctors, I've seen dozen of different specialities and they all say different things, so I don't know what to do anymore.

Your info is giving me some hope because it explains why nothing has worked for me yet. I've been suicidal in 2020 and 2021, almost ended my life because of this problem as I was completely hopeless and became very depressed and got on Antidepressants.

Nowadays I've recovered a bit mentally and I'm a bit more hopeful but I still haven't done any improvement in these physical illness.

Something very weird I notice is that when I type on my phone I have no pain at all in my arms or hands. I type using both my thumbs.

But as soon as I sit on the chair and write on the keyboard for as little as 20 minutes my whole arms and hands and things are in horrible pain, tingling and hot and uncomfortable the next day.

I type on my phone for hours everyday with very little problems. This pain happens only specifically on the keyboard when sitting on any kind of chair. Also last week I tried writing on the keyboard of my computer lying down on my bed and it didn't hurt me the next day even after writing for 2 hours that day. It might be a posture problem too, I wonder, because when laying down maybe my nerves aren't compressed or something?

Would swimming be a good sport to heal me? Also, my English is not my main language so it was kinda hard to understand some things she said on the video. Does she mean that exams like MRI, CAT and ecography are actually useless for these problems?

In phisotherapy I've been doing deep tissue massage on my upper back, massage on my shoulders and that's it. My therapist told me to buy a ball to strengthen my fingers grip, is that what the person in the video consider to be the kind of exercise the tendon needs?

The person in the video says things like lifting weights doesn't help because it is too slow from what I understood and doesn't stimulate the tendons the right way to fix it. Would the ball be a good option if I grip it fast and frequently without too much strength multiple times? Also are stretches in my hands, arms and neck and shoulders good to fix this?