And, a trip to a PT who can recommend exercise to help with the back and make riding more comfortable. I had severe and acute back issues in March and April and after an MRI showed some disc issues and some stenosis, I haven't had any more acute issues since my PT changed his focus of what he has me doing. I do the stretches at least 2x a day. It's not that my back never feels sore or twitchy, but I have been doing some serious riding in Spain, with no acute issues. Being active actually helps.