Hi 25F here! 
I have had severe social anxiety since grade school. It’s gotten better over the years with the help of my wonderful therapist. I’ve had a few anxiety attacks that I think have been caused by major changes in my life (change is one of my biggest struggles). I left my job of four years in retail to become an office manager at a construction company, I started dating a past boyfriend and my family isn’t too keen on it (there’s a 19 year gap) and mostly don’t speak to me anymore. I just recently moved in with my boyfriend in June and it’s a bit different for I have lived with my parents for the last 24 years due to mostly my anxiety. 

I need advice on how to communicate with him when I’m feeling an attack coming on and what to do in the current situation. There’s only two other people who I know thoroughly understands what to do and that’s my mom and my therapist. My past relationship of two years did not accept my anxiety and all the things that come with it positively and I automatically assume T will be negative towards it too. It’s hard to explain to someone who isn’t familiar with living with someone who has learning disorders, anxiety disorders and is on the spectrum, so I try to mask until I can’t anymore and it causes a slight strain to our relationship as a whole.  Sorry if some sentences do not make sense, my brain is tired.