i keep getting a really warm sensation in my feet(today right), I have severe sciatica pain, which Makes me want to go to ER. I have severe disc degenerate disease and herniated disk 2 in neck, with neural foraminal stenosis,ect and 2 herniated discs in low back L5 &S1 with NFS, also spondylolithesis. My hands go numb often, as well as my legs and or feet.I have lived in so much pain, for over 5 years. ON top of that Fibromyalgia, arthritis, ect. I cant take much more... What would cause the Warm or cold sensations(weird), that come and go briefly? Dawn,44