Back t the OP original question, YES it OK and normal to fell some pain and stiffness in the neck, shoulder and back after your first ride of 45 miles or so. I feel that way every spring when I get back on the road. I know its gonna happen, and I accept it. If the pain does not go away, then you have a problem, but give it a few rides for your body to get used to the increased workload and different stresses of a new riding position.