I'm so tired. I've been so moody the last 3 days. I've lost my temper so fast and then go straight…

I'm so tired. I've been so moody the last 3 days. I've lost my temper so fast and then go straight to being ready eyed and depressed. I don't get it. I mean I do but I should be used to it since I'm bipolar but I'm not allowed to take my psyche meds. So I guess that is also playing a part in my emotions. I just hate mood swings that happen so fast. I always feel so bad when I snap at someone. I hate making someone upset. So in turn I get upset :(