i used to get anxious sometimes when i'm with crowds of people im not familiar with, but since the quarantine, i've been feeling anxious more often, when i'm alone in my room and even randomly around my family

let me explain my situation. sometimes im just doing normal stuff like watching tv or on my phone, and for like 5 short secs i zone out and a past memory pops up in my brain which triggers my body to just spasm except it wasnt involuntary or anything. i am completely aware and its almost like my mind &amp; body chooses to do that. its just weird. one of the most bizarre things ive done to myself is a full on slap on the face while i was in bed and i thought of an embarassing memory that happened in the past.

i apparently would 'voluntarily' hit myself, or yell random words, my most often would be 'HELLO' like everytime i zone out for a few secs and think of a memory that gives me anxiety

this doesent happen all the time tho. it only happens when i get too deep into my thoughts and it occurs for less than 10 secs, few times a day. 

im sorry if this is too long, i just find it really weird and i wanna know why im doing this and if i should be consulting anyone rn. thanks for reading if u do!!