re: Olmesartan HCTZ and fatigue

I would have demanded a foley catheter.

Mike, that's a pretty big swing down, you'll definitely feel that. I'm sure you're monitoring your BP, but I don't know what schedule you're keeping with that. I would check it first thing upon waking every day, take your med at the same time everyday (and be really strict, set an alarm on your phone or watch and be consistent, this helps keep drug concentration levels consistent), and if you can check your BP again before you engage in any activity that's good too. Sometime it's a pain in the arse to get dialed in with BP meds, sometimes it's a cakewalk. If you have to go back to the cardio to get something changed, it's best to be armed with a blood pressure log, with time/date, and also comments such as "after a meal" "before bedime" "before mowing the grass" "after mowing the grass, hot day" etc. You probably know all of that, but just in case.

Also, I second Lemmy's comment, and to anyone else, you don't have to go full Pedialyte/Gatorade, but adding salt to your water is a wise move in the warmer months, you can mask the taste with a little lemon/lime juice, or something like Crystal Lite powder or something like it. LMNT packets are a good option I've heard, but I've never used them.