Shitty situation......

I’ve recently started a new job. I am on my feet running around and doing stuff all day. My job before this was a desk job,so I sat all day. Well I’ve also started taking my birth control again. In 2 weeks I have lost 24 pounds!! The doctor wasn’t worried. It’s probably mostly water weight. I drink a ton of water now.I still don’t eat great, but I’m gonna change that. What’s annoying is everyday when I get to work, it’s go go go to beat the clock. I without fail always have to go take a shit. And it takes me like 15-20+ minutes because of my IBS. I hate it. I never did this with my old job and now I have a high pressure and fast paced job and it puts me behind.