Neurological worries, young man, please help.?

I am a 21 year old african american male college student. For almost a year now, I've experienced overall fatigue, digestive issues, brain fog and depersonalization-like feeling, and bodywide muscle twitches. These twitches are my biggest worries, as i have them not every second of the day but every minute, on the minute. My family and my soon to be fiancee have been patient with me, as i went to a neuro For a emg and ncv test and clinical exam and all normal except a high cpk and they think im losing it. I can't help it, as since last december, my left leg has been feeling weak and has felt to me like it has steadily been getting worse, to the point where all I have to do is flex to get twitches from my thigh to my toes and kinda have to pick it up when i walk moreso than my left. I have been quiet about my increasing twitches and worries for months but i feel like i am nearing a breakdown just from all the stress of uncertainty and all the stories i read of people my age getting ALS. Any physical/mental medical advice?