I’m losing my mind because of my health anxiety

This is such a difficult time for me, honestly. I tried tricking myself into not freaking out about covid-19 by saying it was no big deal but now my health anxiety has taken me by the throat. I’ve always had a bad cough but recently it’s gotten worse and Ive had a persistent headache for the past few days so now I’m flipping out. I don’t have a fever, shortness of breath when just relaxing, runny/congested nose, etc. I only have a cough but I’m convinced I have the virus. I can’t get tested because I’ve heard the cost to get tested can be in the thousands and I don’t have that kind of money (I am insured but there’s still a possibility of getting billed a large amount of money). Am I right to be concerned and should I just get tested?