just a few questions about amitiza

Hey all I just have a few questions on amitiza I've been on amitiza for a couple of years which helps with the chronic constipation that I used to have.I'm on a dose of 25 MCG taking it everyday once with a meal my questions are should I be taking it every other day? it does help with me having bms but I find I go several times during the day will taking it every other day help with less trips to the bathroom? I've also noticed that I urinate a lot I do drink a lot of water sometimes minutes after finishing a bottle of spring water and I go with every bm both senerious are long a hard urinations.Could the amitiza be causing this? anyone else experiencing this?,is this normal?

thanks will appreciate it