Any idea what those symptoms could be?

Forgot to add: I've had several tests that came back normal. These include blood work, ecg, rmg, head MRI, chest X-ray and colonoscopy.

That sounds horrible, Sbesozzi,

At least they did all the tests and couldn't find anything, but it must be a worry for you, especially when the doctors say you are too young for it to be anything serious. That in itself aounds ridiculous. I know of people in their twenties who have had total joint replacements, which is only supposed to happen when you're much older. There are young children with serious  health problems. 

Could you not ask for second opinion?  I definitely would. And it sounds to me as if you could also do with some medication to help with your anxiety over this. 

I know from my own experience how stressful it can be when you have symptoms that a doctor cannot diagnose successfully. I am going through this right now. But because of the lack of medical expertise, I have to wait three months to see a consultant. It's scary to say the least, when I was told it may be a slow growing cancer.

I would advise you to ask for a second opinion and make sure you take someone with you to your next consultation.

Good luck with everything, and let us know how you are.

Hugs, Sasha.

Do you take any medcations including eye drops? Many of them have bad side effects.

Thanks for the support. The only medication I take is mirtazapine for anxiety. I've been taking it for 4 years with no side effects, except being a bit drowsy. Occasionally tylenol for the pain.