Could be all the back and forth - the uncertainty. I get that way too. Some days nothing can bother me - some days I don't want to do anything, talk to anybody...And the hurt comes back. We talk, I'm all happy, then it's like I'm non-existent for weeks.
Keeping busy is so key to helping yourself stay healthy through this. All my friends are married or live far away. So I decided to start working out. Not only does it keep me busy, it gives me something to look forward to every day. Keeps me on a schedule, ya know? It's something I do for me and no one else. I won't lie though - I got very happy when the ex noticed.
I brushed up on my photography projects, woodworking....Are we allowed to talk about the books you're reading on this forum? I read quite a bit, but I haven't found any good books on this subject.
I try to allow myself limited amounts of time feeling bad. Not because I don't miss my ex - but because it's not healthy for me.