Hello, I have studied your case. Probability of swelling and warm sensation can be due to venous congestion which gets relieved by lying on bed supine. I will advise you colour Doppler leg and EMG –NCV[nerve conduction study]. For these symptoms antibiotic and neurotropic medication can be started. I will advise to check your vit B12 and vit D3 level. Clinical examination is important to advise further investigation. Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health. Take care.