Maybe if you let your guard down a bit and be a bit more you, you won't suddenly explode with emotion? I know when I keep everything inside and keep masking how I am it catches up with me to the point where I can't contain it anymore, and normally it will be something stupid that will set me off and then I can't stop. Does you mother-in-law know anything about your MI?

Keep posting here and we will offer you as much support as you need for the next few days you'll be ok

And try not to worry about a similar thing happening to when your father-in-law came. The more you overthink it the more likely it will happen. Like a self fulfilling prophecy. Just keep telling yourself you'll be ok, you can do this.

Thats what I'm thinking anyway