3 weeks ago had burning tingles in my body.few days later itchy lower leg rash started,, now sudden sharp pains in all my body specially legs and arms?

Consider allergy: Consider Lyme disease, allergic reaction and screening for neurologic disease. Please follow up with your PCP.

Tingling and rash : Your symptoms require more information to understand. It would be great to see the rash and get more information from you. Many possibilities come to mind but to come to a conclusion you need to be seen by a doctor in person.