How would you react in this situation?

So I’ve been going to the gym for about 6

Months now. I’m 12 months postpartum. Prior to baby I had been going very consistently up until 20 weeks.

Anyways, since coming back it has been very hard. Consistency definitely has paid off but I still feel like I’m nowhere near where I was before baby. I still hate how my body looks. I’ve had to have 6 months of physical therapy because of back pain, weak core and weak pelvic floor after baby. It has been a lot of work these past 6 months. I’m happy with the progress yet at the same time I’m very insecure.

I usually do my workouts alone and I don’t interact much with anyone. I just mind my business do my workout and leave. Apparently people were watching me the whole time I was doing my workout.

Someone (man) went out of their way to comment how I did well until I started falling behind on a certain round of the workout. Then went on to comment on my form and how I looked terrible and how I’m doing more work than needed which then chimes in another man to also emphasize my poor form and almost starts making fun of what I was doing during my workout. Never have I ever spoken to these people before. Idk why I’m so upset about this but I am. I’m embarrassed. They didn’t offer any tips but just criticizing my every move of the workout.

Im so embarrassed, mad, sad, upset. I didn’t know how to respond to these people.