Could you give me an advice what should I do or check?

[ABCD_1234]

Hi,
I'm a 22 year old female. I suffer from asthma, multiple allergies and reflux. I've been looking for help for years and am a little bit tired, because what I'm going through makes my every day life difficult.
Since 2015 I've been suffering from "returning" wrist pain. A few days of pain, once a few weeks then it stopped. My wrist is more stiff now after avoidance of moving it. Two years before it appeared I started to have visual snow. Now I'm almost blind at night.
I also have other joints (also bones and muscle) pain, but it isn't as severe as the one I described above.
Since November I've been having a backache placed over the right shoulder blade. No matter what position I choose, it hurts. When I walk, when I sit, when I lay in a bed. The pain isn't strong, but I can't focus on my every day tasks. A few days ago I couldn't fall asleep because of chest pain. My periods became shorter and there is almost no blood (since January).
It's not stress, I'm fed up with hearing that I'm stressed. My blood tests are fine, same about thyroid, heart or brain. I've had brain MRI and EEG and it's allright. I feel dizzy all the time, like I was going to fall or have seizures. Next week I'm having an RTG (in order to check whether it's not a hidden pneumonia or something - I had it as a kid, it was undiagnosed for three months), later borreliosis tests. But I don't know if it is the right direction, the doctors don't know what is wrong and I'm fed up both with these symptoms and hearing that I'm hysterical.