Rash and flu like syptoms with joint pain

Patient: I have had a horrible looking rash that started after 2 bouts of Shingles about a year ago. Flu like symptoms that can last days, knees hurt and feel as if they aren’t strong enough to walk, cannot sleep, joint pain, moodiness, racing heart, ect….I am on 1800 mgs of Neurontin for nerve pain, 20 mgs of Celexa for nerves, 100 mgs of amitriptyline, and 50mgs metopropolol tartrate. I was checked for Lupus, but test cam back negative. Am having a punch biopsy on my rash tomorrow. They think MAYBE Lyme. Any ideas? I am at my witts end!

Doctor: