In my life with the disease, I've noticed that I have had a tendency to have exacerbations in certain months. So while the summertime is always difficult for me because of the heat, I'm primarily battling existing symptoms there. However, when I look back to all the times I've had relapses and new/worsening symptoms, they have almost always been in October/November or March/April (At one point, I actually wrote about it making me fear March: https://multiplesclerosis.net/living-with-ms/monstrous-march-past-experiences). It's probably a coincidence, but over 20+ years it's been pretty consistent for me.
Have you noticed anything like this? Any time of the year that seems to be particularly tough for you? Have you tracked when your relapses have occurred?