scared stiff chest pain, muscle twitching, coughing, had an ultrasound scan and they found a cyst on my kidney

Hi guys, I have had ongoing symptoms since Covid in 2021, muscle weakness, chest pain, coughing and also headaches. I complained to my doctor on a number of occasions however there was a delay in sending me for an ultra sound scan after a CT scan showed I had a dilated kidney. I had a Ultrasound scan 2 weeks ago and it showed a cyst on my kidney and now I have been referred as a 2 week appointment to a urologist. I have none of the typical kidney cancer symptoms. I have no blood in my urine but I do have back ache but I am eating normally. I am scared stiff can someone please offer me some reassurance.