The neck pain definitely. The leg pain possibly. I had left leg spasm like pain and sometimes felt like my left leg was very heavy like a feeling of dragging it. I didn't actually drag my leg but was aware that it seemed heavier. I've yet to have a doctor tell me it was heart related but it doesn't feel that way now that my blockage is fixed. The belching maybe. I've heard some people say that their belly felt bloated and in my case it felt like my chest was being pushed out like a very full feeling. I didn't however have the belching problem myself.