I felt like that a couple of weeks ago, but it went away in about 3-5 days. I feel achey and sore this morning, but I think it is from the general damp weather and the damp in Bleak Towers ( and perhaps contorting my body in horror from the mess in the lift), which brings out every little minor ache and pain from years of sport as crashing as hard as possible into the ground from horses in mid-air...every strained tendon, every broken and dislocated bone, every everything...
Drink tea with echanechea ( cannot spell it so it MUST be good for you!) to help with colds, flu!