please help twenty year old on the brink of breakdown...?

Hello all. I've been posting here for a while now asking for help with my reoccurring issues. Ive bee. Having sensitivity to light, brain. Fog. A funny feeling of a hat on my head, weakness in limbs generalized, muscle twitching from head to toe, including back, sides of head, face, butt and limbs, generalized shakiness in all limbs and neck, resting and moving tremor, depression, digestive issues, and random episodes of nausea. I feel so bad with all these problems twenty four seven, and evervy body just calls me a hypochondriac because the few doctors I've went to and the neuro I saw didn't fins anything wrong. I told them that there's a huge difference between finding nothing wrong and nothing being wrong. I just need some sort of way to cope with this because the two years I've dealt with this has left me waiting for thenext thing to go wrong. Thank you for you answers in advance