Why are my arms numb? Sometime my legs also

Ok, I have done some research and I believe I might have some nerve problems but I would like some insight thanks. Here some details, in the past couple weeks I've been waking up with my arms really numb. I thought it was because I was laying on them but even when I lie straight on my back its still numb. In the past week, my arms been getting numb through out the day. And also I tingly numb feeling on the back of my back and Ive been having these two bumps on the back of my neck that have been there for awhile ( dunno if that's related) the numb arms feeling is really irritating and already made me miss work. I made a dr appt but it's not for another month since I have no insurance. What can I do? Any thoughts and ideas pleasssee!!! Sorry this is long.