I temporarily lift and load boxes for a living, so I'm prone to getting injuries I've never experienced before. I also attend college, which really stresses me out because I want to do great in college but my job is causing me to fall behind. I was at work and I got this sharp pain in the left side of my chest. But it went away quickly. It happened the next day when I was on my way to take an important Chem exam but it was milder. My chest and arm began to cramp the next day. The cramping in my left arm seemed to calm down as I went to sleep. I put ice on my chest and my arm and I used Epsom salt, which helped a lot. The cramping has stopped but im getting tingling sensations in my toes, hands and sometimes my back. If I scratch my skin, it'll burn. I've checked my pulse multiple times to see if I'm heart rate is okay. This scared me because I thought I was having a heart attack but I heard that's unusually for a 19 year old, who doesn't have any heart related health problems. The tingling will go away if I move the area or change positions. Sometimes it'll last for some minutes then stop. I also get mild shooting pains in my ankle up to my knee. When I was falling asleep just a minute ago, I tried to move my neck but couldn't. It kinda felt like sleep paralysis. I'm scared because idk what this is and my mom is tired of me convincing myself that something is wrong with me. Does anyone get these symptoms or have an idea about what causes them?