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Try taking a hot shower upon wakening. It seems to help me just letting the water run over me & at night relaxes me to help sleep.
Feels like concrete joints. Takes good 30 minutes to start getting loose. After exercising (golfing) stiffness comes back for rest of day.
Movement helps. The first 20 minutes out of bed are the worst.
I think gentle exercise helps. Check out range of motion exercises.
I have been trying to hey a shower in but , its not happening and taking a hot bath relaxes me sometimes but it also hurts my spin i have inflammation in my spine so cant realy relax as much :( x