Sharp pains on top of my head brain fog that comes...

Beginning last may I started getting some weird symptoms. Mild headache off and on, muscle twitching on various parts of my body off and on, burning eyes (mostly left) and blurred vision in both eyes off and on, ringing in my left ear off and on, aching pain and tingling in my arms and legs off and on, hair loss on my lower legs, Sharp pains on the top of my head off and on, this feeling as if somebody is touching the top of my head when in fact nobody is, lightheadedness or brain fog that comes and goes and a feeling of pressure around my nose and eyes. Also I feel achy in different parts of my body sometimes, like my legs, back and arms. I got a CT scan without contrast and a brain MRI both with and without contrast done, which all came back clean, thank God. My only known medical issues are vitamin D deficiency, sleep apnea, Scoliosis and early stages of fatty liver.

My diet is pretty good right now, I had the early stages of fatty liver, Sleep Apnea and a very bad vitamin D deficiency, so I was put on a strict diet. I no longer eat red meat, also I try to stay away from too much carbs and sweets, as well as fried foods. The symptom that really worries me the most out of all the symptoms that I have been experiencing is the muscle twitching all over my body. I do stress a lot, I pretty much worry about everything to be quite honest. I stress about money, I stress about my medical issues, I stress about where I live, I stress about relatives. Pretty much everything. But the twitching usually lasts for days and even comes on when I am not stressing. I have been trying to lose weight and get healthier, in hopes that it may rid me of these issues. But so far I have went from weighing 350 lbs to 289 lbs and haven't seen any change. It has been a really long year with all these symptoms and I hope I can find out what this is and get rid of it soon so I can move on. I have gotten blood work done along with the MRI's of the brain and the CT scan. I also lost some hair on the sides of my ankles and started getting some brown blotches. At first it looked like dead skin, but never went away. The physicians assistance didn't know, but thought it could be from fluid in my legs. I just wanted to make sure that it couldn't be atrophy. I tried finding pictures to compare, but was unsuccessful. Do symptoms of ALS come and go like my symptoms do? Do my symptoms sound like typical ALS symptoms? On the bottoms of both legs where the hair is gone and the brown spots have formed, if I lay that leg on the corner of a couch for long periods of time it ends up having a dent on the side of my leg. Now I know that anybody who has their body sitting against something is going to have a mark where the object had rested, but with this it ends up being a very big dent that lasts for a few hours. I am not quite sure what atrophy is and I don't know if this could be atrophy.