The most likely answer is there may be ‘neuropathy’ in your feet. Neuropathy means the nerves have changed their conduction and are sending ‘strange’ information or signals to your brain. In some cases, neuropathy burns, sometimes people say things like you’re saying, others complain of paresthesias, such as a feeling of bugs crawling on them, numbness, tingling and the problem is worse at night when you’re actually resting or in bed, and sometimes wakes you from sleep or stops you from getting to sleep. The best way to find out is to visit a podiatrist who can order a nerve conduction study through a referral to a neurologist. Alternatively, you may have tendinitis or arthritis, but to me, it sounds like neuropathy.