I have a burning sensation in my left leg. no pain, no redness,no swelling, isnt hot to the touch. its been doing this in the evenings for the past 4 days. i asked my gp and she just kind of said if theres no pain, dont worry. any ideas?

Neurologist : I have to disagree with your GP. Burning sensation is a nerve type of sensation. Given that it’s very possible that is what you are experiencing. You did not describe the area or the type of burning you are feeling and when you are feeling it. Therefore it is difficult to give you a more definitive answer. But That will give you some place to start. See a neurologist

May need evaluation: Not feasible to pinpoint a specific explanation based on description provided, but emphasize that your GP appears to have trivialized your concerns. Would urge monitoring situation, and if worsens, seek a second opinion. Likely represents nerve issue, but could be transient. If intensifies, becomes painful, associates with numbness, tingling, weakness, or involves right leg, get help!

Peripheral neuropath: Dr. M is correct. Consider a few supplements like Bcomplex, alpha lipase, magnesium. Some evidence that these may help but may all be placebo.