When I'm mentally unwell, I isolate myself instead of sharing the load with the loved ones in my life that would jump at the opportunity to support me. I fear being seen in a vulnerable state and given enough rumination I can easily find "reasons" why maybe it would be for the best if I disappeared for a bit instead.
I haven't been able to directly overcome it yet, but I've become aware enough to communicate it and people in my life at least know the signs of it happening now.