Welcome!
You need to sit your husband down with the words 'we need to understand what is happening and I need your help with this'. He may be frightened: fear + worry = anger. I know. Been there.
HORMONES - mine caused me to lash out regularly, DH knew my period was due before I did - he would say 'check your calendar!' - then my guilt would set in

Have a thought about why you married this man. Then tell him why! and add that you aren't the same person right now, [after all this isn't called 'the change' for nowt]!
However, if he is blocking your way, that is a form of abuse. My Dad would follow Mum around the house ranting …… she tried the walking away bit but it didn't work

. So you really do need to address this issue
before all else! Having a buzz word might help. Suggest that in future he is to walk away from you when you 'start' as you are both aware that this is at present, uncontrollable and you have found that shouting doesn't achieve anything!
You won't find alternative/herbal remedies work for long because your hormones are all over the place. Maybe this is the time to visit your Practice Nurse/GP and discuss anti-anxiety treatments as well as HRT. Have a read of the menus top of screen ……. you don't have to make decisions immediately but knowledge is power. I take a beta-blocka at night in order to control anxiety surges and have used 5mg Valium 'as necessary' when I HAD to go places. I know have an emergency drug to swallow when the anxiety floors me ……… for 4 months in the 1990s I was unable to leave the house

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