There has been a 48 hour virus going around that describes your husband's symptoms. It comes on fast and has a one two punch of nausea and diarreah. But without fever. It leaves almost as fast as it comes on for some reason, very self-limiting.
If you can get him to sip clears for now that would help him from not getting dehydrated. His BP being lower is a bit worrisome unless that is his normal range and the 144/94 was the aberration. Having a headache wasn't something you had, I assume anyway, so he most likely has something similar but not the same bug.
If he suddenly develops a fever with any of this I'd have him looked at right away. If he has sustained any injuries lately and not told you about them, now is the time to out them. If he had one of some sort he might be getting septic from it and that isn't good. And he most definitely would need to be seen by a Dr. tonight.
As long as you can remain supportive in your measures and see him through this for now, I'd agree with you to keep an eye on things and see if it doesn't pass shortly. If it doesn't and he develops new or worse symptoms get him to his Dr. right away. It appears you are making him as comfortable as possible. Good for you.
He is worth it and you sound pretty diligent to me. Lay off hard food but try to get some electrolyte drink like Gatorade in him. Should he start losing them with any diarrhea he will need them repleted to make sure nothing else in his system gets run down. Thanks for taking good care of him, you sound like a peach!
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