need help

i have been talking to a guy who lives and hour across town from me we used to snapchat all the time he really makes me happy and he listens to me and comforts me hes really the best thing that has happened to me, but earlier this month i got a text in the middle of the night while i was asleep saying he almost OD and ive been blowing up his phone bc i want to see if he is okay and i havent gotten responses and im sorta giving up and before i met him i struggled with anxiety really bad still kinda do and now when i think of him i get anxiety attacks, so do u guys think i should just give up or wait to see if he ever responds? bc i have no way of contact with him other than school at the moment which wont start for another month