Losing my mind a little

So my husband and I sold our house in Florida, are closing on our new house (hopefully) June 15th, and are living with his parents until we can move in. I LOVE my in laws, I am truly blessed by them. But you know...... Living with someone or staying with someone for an extended period of time, nerves get frayed, feelings get hurt, and people overreact...... And I get that. I HATE feeling like I'm walking on egg shells. My sister in law (doesn't live in the same state) changed her profile pic on Facebook, and she's doing a 'duck face' and it's just silly looking..... And I said out loud, 'her hair looks GREAT, her skin looks amazing, but she's making a weird face' and my mil asked me to show it to her, and I said again that I liked how she did her hair, but the face was just weird looking. And she said 'okaaaaayyyyy' like, I heard you the first time, that's enough. I KNOW I just shouldn't have said anything. I KNOW that is her daughter and she knows how beautiful she is, and I agree with her. I also know that I'm pms-ing and I shouldn't let things bother me this bad. But I just hate feeling like everything I say is wrong. Sigh. I don't like hurting my loved ones' feelings. Sorry, had to vent lol