Are my boss and supervisors being petty and unprofessional at work?

I work in an office full of Civil engineers (all men, the admin staff is all women). The CEO of our company is my uncle. He has been so unfriendly lately (maybe due to midlife crisis or something) but on top of that one of our cad employees quit (literally just up and left) last week and my supervisor and our CFO were making openly rude comments about it. She was the only woman back there in the cad department and her reason for leaving was that she didn't feel comfortable anymore. She was such a nice person and it was shocking to me to hear the comments. I thought it was very unprofessional. Also, I have had bronchitis for quite some time and have missed two days of work ( not consecutively) and when I came back to work they all made comments that I wasn't really sick (played it off in a joking way). It really made me upset because when I was at the doctors office my mother called and said that my work had called my house (she was at my house at the time) and wanted to know if I was still too sick to come in (I had 103 fever). I think that stuff like this is just very unprofessional and it makes me uncomfortable the way the main Officers in the company talk about the employees. Is this normal?