My boyfriend won't support me

I have dealt with anxiety for as long as I can remember and just this week I decided to get help and finally pushed myself to talk to someone. In the mean time my boyfriend still pushes me to do things I'm not comfortable with like going out with his friends and or seeing his daughter. I tried explaining to him what having social anxiety is like and it just gose in one ear and out the other. I suffer from IBS due to my anxiety which causes me to have to use the restroom a lot and it's embarssing right now I'm getting help from my doctor to fix it and figure out a new diet but my boyfriend today wanted me to go out with his kid to see a movie and I really didn't feel like going so I told him no thank you but have fun ! And I have always been supported of him. I don't know what to do I feel like I'm being pushed down rather than him pushing me up. Should I stay with someone like this? I'm not sure if I'm overreacting but I feel like he needs to understand it's a process I can't just do things right away. :( 
Any advice would help 
Thanks ladies xxx