i had something smiler to this for me it felt like someone was pouring warm water behind my leg. this was when i was under heavy stress soon after the stress lifted the feeling decreased and then was gone. hope this hopes
it might be a pinched nerve, or a nerve under temporary pressure from the way your body is positioned
Hi
Welcome to the MedHelp forum!
A heat sensation or sudden feeling of warmth can be a sign of blood clot or deep vein thrombosis. It can also be due to pinched nerve or due to diabetic neuropathy. If you are a female and on birth control pills, then this could be due to the side effect of pills as they can also cause deep vein thrombosis. For diagnosis first a duplex ultrasound or color dopplar would need to be done. If this is negative then a nerve conduction study and test for diabetes. If there is a chance then if everything else is negative, then lupus may need to be tested for.
Please consult your PCP for primary examination followed by proper referral. Take care!