SO Working A Nerve Tonight...Rant/Vent

Wth is wrong with him tonight! He's acting like a 6-year old!! I'm feeling so much pain tonight (which after some research I think is round ligament pain) and my lower back is killing me. FYI: I'm 18w today. My SO is throwing M&Ms at me like it's funny! I told him to quit and he just laughs and throws another one at me! Wtf?!?! It's not funny! He just laughs when I say I don't appreciate that. Really? I don't know if I'm just testy because I'm not feeling well or what, but honestly if someone says to stop whatever it may be than my god stop!