Am I panicking myself

Please don’t be rude as I’m already panicking. I’ve been having this dry cough for like 2 months where I was sick with a cold anyways this past week I’ve been feeling tired, sore, my chest feels tense, my head hurts a lot and I’ve been feeling dizzy. My sister tells me since I’m paranoid and scared about the coronavirus I’m making myself feel sick. I feel so stressed I panic so much I’m scared to get covid as I have 3 kids and I live with family. I’m please just ease my mind an tell me I’m just going crazy like my sister says lol.