Hi, Evey, and welcome! Tressia is absolutely correct! You need to learn to pace yourself or your body will "scream" at you ...like it did Sunday night. You can do all that you did before fibro but not in the same time frame. I'm so sorry about your grandfather and I'm sure that was extremely upsetting and stressful for you too and that can cause even more pain. So you have had a lot on your plate.
I do think this intense pain will subside...especially since you were able to do all of that work and running around. It might take a few days or a few weeks but it should improve. Fibro waxes and wanes so you are just going through a rough time right now.
Chutz is right about the heat. A hot shower does wonders for me. Many here have a Bed Buddy. You can get these at Walgreen's and other places or you can make your own by taking a tube sock, filling it 2/3's full of raw long grain rice, and tying a knot at the end. Pop it in the microwave and it gives off moist heat and feels wonderful on those sore muscles.
Have you had a chance to check out the Fibro 101 thread...the second thread on the forum? There are links to good information about fibromyalgia there and you will learn a lot.
I'm so glad you found us and decided to join our fibro family! I hope you are feeling better soon and I also hope to hear more from you.
Sherrine