Pete, I too know what you mean. I guess all we can do is enjoy the good times and try to remember that they exist during the bad times. It would be a very lonely existence without all the folk here at KA, that's for damned sure.
Hot baths with a ton of Epsom salts are awesome. Don't follow the directions on the package as to how much to put in. Just dump it in until the water won't absorb it anymore. That way, you'll mostly float in the tub, so your back won't make as much contact with the tub.
Take care of you.
Many hugs,