Hi Sharon --
Unfortunately it is normal to feel quite sore after a tonic-clonic (grand mal) seizure. The body can take a bit of a pounding with the tensing of the muscles. After my first seizure I was quite sore for at least a month, particularly my back. And I felt zonked, like the worst of the worst hangovers. But there was no permanent damage. I just had to be gentle with myself during the healing process.
From what you describe, your husband may have strained his ribs a bit, and bruised or strained some of his other muscles. Did your husband go to the ER after the seizure? If so, did they take X-Rays or CT scans? If you're worried about an injury, perhaps a trip to the ER would set your mind at ease, and the doctors there could give you a better sense of what to expect.
It's normal after a seizure to feel tired and confused. Your husband may want to sleep, and that's fine as long as he is comfortable and not feeling any acute pain. He may not be hungry or thirsty right now, but it's a good idea for him to drink a little juice when he feels able so he doesn't get dehydrated. If his mouth is sore from the seizure, soft bland foods are best (soup, smoothies, jello, hard-boiled eggs, etc.), and ice and anbesol can help with the pain.
For his sore muscles apply cold packs or cool washcloths for about 15 minutes several times throughout the day. In a day or two, switch to a heating pad, or warm washcloths. If Tom can take aspirin, ibuprofen, or acetaminophen those will help with any swelling.
Until you and your husband know what may have triggered the seizure, it's best to proceed with caution. No driving of course. Was he prescribed any medication to take as a result of the seizure? If so, he should keep taking it as directed. If you're at all worried about how he is feeling or behaving, go ahead and call 911.
I know it can be very distressing to witness a seizure. In some ways, I think it is harder for the person seeing it than for the person experiencing it. (During a grand mal seizure the person feels no pain because they are unconscious). I am so sorry that you are dealing with this right now, and I hope both of you can rest up and start to recover.
Can you ask a friend or family member to keep you company? Even just talking on the phone with someone can help. And of course, feel free to check in here for support any time.