I’m too sad

I feel so sad and I don’t know why. I feel like shit anf like everyone and everything is terrible. Maybe it’s just my period but Ohmygod this last week I’ve been acting so out of character! I’ve been so insecure with my boyfriend and I’ve been needing so much reassurance that we are okay to the point I feel like I’m tiring him out and and he doesn’t love me anymore but he tells me he does and we’re okay but why don’t I feel okay? I want to feel okay. I’m about to start college tomorrow and a great new job but I feel so shitty. I understand why he takes time to reply he’s with his family and his job but I feel like I’m losing him and he has been nothing but great and he hasn’t given me any reason to think that except that I don’t know we’re not as mushy anymore but I mean people or relationship grow out of that right??? I mean maybe we’re done being in the honey moon phase or something or maybe it’s just a bad day or bad week I don’t know but I want to stop feeling so shitty and bad about myself and everyone around me and I don’t know what to do. I’m trying to act okay but I just feel like a bother for constantly needing to hear that every thing is okay. I’m coming off desperate and needy and I hate that