Why do I sometimes feel dread and fear when eating?

hey, so lately I been noticing whenever I am around most foods especially new food food I sometimes get anxious and dread.

I recently got with a new bf and when we try to have food it normally goes like this

he asks if I ever had the food

I say no

we get the food then I try to eat it at this point I either gag until I feel pain in my stomach and spit it out or cough until tears.

then I say sorry and feel bad about not being able to eat most foods.

one time I even gagged on food I can normally handle.

I always feel upset that I can't eat anything he likes due this issue.

whats even weirder is if I dislike a drink or never have a drink I can finish it no matter which camp if not both it falls under.

For Food I noticed my eating habits seem odd like I feel stressed due to feeling bad about it.

my brain calling this an "annoying habit" that nobody wants to be around.

another side note I had points in my life where I would only eat 1 meal a day or eat the same exact meal for years. There was one time where I was having three meals a day but each meal was baked potatoes for like 4 years atraight.

My bf is worried about me not getting enough of what I need.

my family said as a kid they assumed I was picky but now were questioning if its something deeper like if I need to see a doctor about this whole eating situation.

Every so often like 1 time in the past 5 years I tried a food and actually liked it but it basically bread which seems to be a safe food for me.

At the moment my bf is trying have me get exposed to new foods.

As he always says at least you tried to eat food today.

does anyone advice or thoughts on this situation?