Need some friendship advice

Not really related to my period (at least I don't think so), but I've felt really lost lately and feel like a lot of my close friends have been very distant. I don't know why this is but I've been going through a tough time lately and need my support system but none of them seem to care a lot. Any one have any suggestions or advice on what to do? I miss them so much but feel like they're moving on without me.