I had the exact same thing a few years ago, it stopped out of nowhere and never returned. I never got it checked out and I can't recall what activities I was undertaking at the time but I've always been active one way or another. I actually doubt it would necessarily be related to any one activity (I guess the only one we can be sure we share is regular locomotion). Mine was also the right, it never worried me much.
FWIW and I don't mean to scare anyone, but I DID get a bloodclot on that same leg, but up where my knee is, but I honestly can't recall if the warming sensation predated it or not. To get that sort of thing checked out is kind of expensive, but I figure I should mention it. Again, I have no idea if there was any sort of relation. I went to the hospital thinking I had a muscle issue (I couldn't extend my leg without pain and I had a red streak going up and down my leg. I was hospitalized for 4 days but only because I refused to learn how to inject myself with blood thinners. I had check ups after that and everything was fine)
Edit: I definitely would have recalled if it happened soon before OR after, because I became hyper sensitive of any and all sensations in my body for a few months following the blood clot (since I was told I could have died... thanks healthcare professionals) so I can say with confidence that it did NOT happen 6 months/year after the blood clot. I'm now pretty sure it happened about a year before, for a few weeks, so probably no relation there either.
Last edited by iniQuity; 04-18-2013 at 11:15 AM.
I used to seriously post here, now I prefer to troll.