It is a horrible condition to
It is a horrible condition to have, I'm sorry you and twinkle have to deal with this. For some who may be wondering... Raynauds is more than just cold feet that take a while to warm up... so as for most people - usual methods used to warm up the feet would be much more successful than someone with this condition. Once you have an attack, it can take quite a while to recover sometimes and so it is best to just try to avoid having one altogether. Some days/weeks during the winter, you may just have to sit out and wait till there is a warmer day to run
Repeated attacks can damage the blood vessels and that can be irreversible.
My son (15) was diagnosed with Raynauds last winter and so I read anything and everything I could get my hands on to study all about his condition. His is primary and it is a complete mystery as to how he got it... except we can only assume that with the combination of an extremely cold winter (for Texas) and him going running on some very cold nights with my husband might have been what brought it on. He had a really rough winter adjusting to it and he stopped running, but he was doing Taekwondo which he preferred anyway and that has helped him to stay active (but indoors). He has had relief throughout the summer and is doing much better, but we are dreading the cold weather as he has to dress very warm and wear very warm shoes/slippers all day long, sometimes gloves on his hands all day too.
I think this is a condition that runners (barefoot or not) should be made aware of, because you can possibly get this from exposing yourself to very cold temperatures without proper protection. And once you get it, according to our physician... you will always have it. It happens to different people in various ways, but I will not be putting myself at risk this winter because I know now what can happen. Does not mean it will happen to everyone, but just know that it is possible. I don't want to sound like an alarmist, but I really wish we could have known all about it before this happened to our son, it was not hereditary in his case... we don't know anyone else with it.
Listen to your instincts, if you think you would be just fine barefoot on very cold surfaces, then you'll probably be fine. But if you think you should protect yourself with something warm, especially if you have Raynauds, then you should do so.
I've been running barefoot, but trying to also run on some days with VFF's just to get used to having something on my feet and before winter strikes us here, I am going to try to learn to run in a minimalist shoe with warm socks on, I really like the Thorlos I used when I first started running (with shoes). It might be a struggle to find shoes I'm comfortable with, but I'm going to try.
Clearly there are many people who have no trouble at all warming up and staying warm - even running barefoot in frigid temperatures, but there are also many who maybe shouldn't. I am pretty sure even the Native Americans and others who did not have modern day shoes like we have now probably protected their feet from ice, snow and very cold temps... and then they probably had some very strong women and men in their tribes that would forgo the coverings - but I am going to presume that had I lived 300 years ago in this land, I would have likely chosen to be as warm as possible, that's just me
So don't feel like a traitor LOL Your health matters, got to take care of those feet so that you can run for the rest of your life
If you have Raynauds, I'd think a combination of keeping your core as warm as you can as well as your feet will be much safer than running barefoot in the winter.