Crawling feeling in legs once in lower leg now warm painless burning feeling in both legs up to thighs, stops w/pressure (tight socks), pinched nerve?

Neuropathy. Crawling and warm feelings are not always from a pinched nerve. Pinched nerves are more commonly associated with pain. Neuropathy, which can be injury to a nerve down to the cellular level can be associated with burning and crawling as well as numbness. A nerve conduction study would be a good way to answer this question of nerve compression vs. Primary neuropathy.