Weird about some people watching me breastfeed...🆘️

I breastfed my last baby anywhere! I felt comfortable whipping out my boob and was so proud. However, there are some male family members who make me feel uncomfortable. Especially my FIL. He has never said anything or done anything but I just feel creepy when he's watching.

I don't want to create any hurt feelings (especially if he's never done anything) so asking him to leave is out of the question. Especially since I've done it in front of everyone else.

I am due this summer and I'm dreading breastfeeding in the heat or in the hospital in front of him.

Question is 1st: has this happened to you with only certain people?

Question 2: What have you mamas used to cover up without baking your little one in the heat? Any specific product?

Also, not sure it matters but my breasts are huge and I'm really short!

I just want to have the option available if I want it!