Crippling cramps

Do you ever get cramps so hard that you simply cannot continue your everyday activities (school/work/housework/etc), and if so, what do you do and what sort of excuse do you give when you need to cancel your commitments? Also, how often does this happen?

I’ve always had this problem every now and then since I was in my teens (I am now 32), but lately it has been more often than not 😩 I feel like I’m running out of excuses at work and I work in a (strongly) male dominated industry, I feel like my boss/colleagues simply wouldn’t understand the problem it really represents for me