Tremors from last 6 months. Etc!

Hello Doctor, I have following symptoms from last 6 months. 1. High frequency low amplitude tremors in Both hands, fingers, arms, jaw. 2. Tremors are continuous from last 6 months without any break. 3. Disturbed sleep cycle. Sleep around 5am 4. Thumbs have much visible tremors and an important feature is when I use my thumb and change its position it keep on shaking at the new position. 6 .I can find tremors both at rest at work at walking at sleeping that is it is always there. 7.random Fasiculations over the body in chest in arms in legs and face. Happens every single day. 8. Feeling of something crawling in forehead backhead and face sometimes. I DON'T smoke ,drink tea or coffee, alcohol or anything. I met four neurologist all say it's stress and give me sleeping pills and antidepressants. I have met a psychiatrist also he said the same thing. But nothing is working. Can stress induced tremors can cause consistent trouble.or is it sign of brain tumor,als,ms, Parkinson's,dystonia etc