

Hello everyone,
thank you very much to anyone who takes the time to look at this and possibly help!
I have been suffering for over a year from a constant feeling of unsteadiness, lightheadedness, and pain at the back of my head, which unfortunately hasn’t improved on its own. Unfortunately its so bad, that I can't even work atm.
That’s why I wanted to ask again if someone could take a look at the MRI.
For about a year now, I’ve also had pain in the upper left side of my neck (red area). In addition, while massaging the area, I noticed a larger lump (blue area). It is only on one side, does not hurt, and cannot be massaged away.
According to my orthopedist, I do not have a herniated disc. To be honest, he quickly suggested a psychological cause, possibly because I appeared "quite athletic" and young to him.
I would really appreciate any opinions.
(I have already had all further tests done, such as blood tests, ENT, etc.)
Here is a link to the remaining images:
---> MRI Pictures