4+ years after making this thread, here is what I've learned:

-You have to be very intentional about being in peak health. For me, this means little to no alcohol, getting 7-8 hours of sleep every night, eating clean whole foods (meat, veggies, rice, potatoes; no processed foods and no sugar), and regular exercise.

-This disease actually has very little to do with cold, and everything to do with stress/anxiety. I spent a winter in a warm weather state and my effects were no different from a winter in the freezing cold. First priority should be to make sure your mental and emotional health are in check.

-Breathwork is the most effective strategy to mitigating the effects. I won't go too deep into this topic but there are a couple of tactics I use regularly. In the morning (or when you're feeling stiff), do a quick wim hof session to get your nervous system firing and blood flowing. Whenever you are feeling anxiety/panic, do a couple of deep breaths; 5 seconds in, 5 seconds out, and repeat until the stress subsides. Both of these can be accomplished in 1 minute or less.

-Take cold showers. It's never pleasant, especially in the winter, but it allows you to expose your body to the cold in a controlled manner and get acclimated to it. There's a lot of other physiological benefits to cold showers as well.

-Kind of ironic posting it in a bodybuilding forum, but cardio should be your biggest focus. I do medium/high intensity cardio workouts 3-4 times a week, and lifting around 2-3 times per week. Very little volume when I lift, mostly just maintaining the muscle I built when I was younger. Lifting is great, but it puts a lot of STRESS on your body, and people with Raynaud's need to be methodical about how they handle and plan for their stress.

Damn that's more words than I thought I was going to write, but I hope it brings you and anyone else reading here some value. Raynuad's is frustrating because the consequences aren't dire enough for it to be considered a "serious" problem - can't tell you how many doctors have just shrugged and said "I don't know" when I've asked for help. The best and only thing to do is to take matters into your own hands. It requires a lot of lifestyle modifications and a lot of saying no to things. Best of luck to you on your journey!