health anxiety tips?

this past wednesday, i made a trip to the er out of growing concern i was having about general chest/shoulder pain- everything came back normal, and my physician told me my risk level was statistically the lowest it could be.

the pain and discomfort has even started going away, but suddenly ive been having bouts of bad anxiety again that are manifesting physical symptoms and even making it hard to sleep. friends have suggested i seek anxiety medication asap but at this point in time it would be very difficult financially to access it. i don't want to keep bothering them with this and am wondering if anyone here has advice or tips 😓 this is just a kind of anxiety i haven't dealt with really before, at least not to this extent, and i don't know how to handle it