About three weeks ago, I discovered a lump on the back, right side of my neck. Worried, I went to the doctor who told me I was fine, but to keep an eye on it. He did some blood work, which all came back clear.
The lump is hard, unmovable, and entirely painless.
Over the next week after that doctor's visit, I began feeling extremely fatigued and I have had headaches every single day since. Also, my skin on my back, right side became extremely itchy. I decided to go to a new doctor for a second opinion. He did more blood work, including an HIV test, all of which came back fine. He prescribed me an antibiotic and told me to call if the symptoms continued.
A few days after that visit, a rash appeared across my back, mainly on the right side, and moved across my stomach. It is itchy and painful. I went back to the doctor who informed me I have shingles. He gave me a prescription for Valtrex, and told me to call on Monday. If I am still feeling this poorly then, he wants to run a CT scan and biopsy the lump.
So my question really is how worried should I be? I am a 24 year old male. I don't smoke, drink, and I exercise regularly, and I eat right. It is worrisome to have a shingles outbreak at my age? Any responses would be helpful, and thanks in advance for the help.