Although it can often feel like talking to ourselves, posting on social media can be like thinking out loud, an opportunity to sort out thoughts, feelings;
To vent about things we have little control over;
And by expressing them here, they lose power over us and we better understand ourselves.
Anyway, good talk.
The painful, debilitating and exhausting price we may have to pay for having a single good day is definitely unfair, but it doesn't diminish enjoyment of that day.