8 months ago i started feeling pain in my left arm. Thought it was CTS because my hand would go numb at night. Went to the doctor he told me tendinitis. I took some meds but they didn't work. Started getting twitching in my ring finger which spread to the rest of my fingers. Pain and aching persistent in my arm and hand. Started getting a burning sensation in forearm. I get a tingling feeling when i run my hand under running water. Fingers get really stiff. Went to a orthopedic and he seemed very concerned noticing i lost alot of muscle in my left forearm. I tried to stop using it frequently thinking it was overuse preventing me from healing so i thought that was the reason for the atrophy. He immediately mentioned ALS. He gave me a reflex test and when he hit my legs with that lttle hammer my legs went straight up in the air.(don't know if that has anything to do with ALS) i know i sound like an idiot but i am worried now. going to a neurologist soon. was hoping for some insight.