Your period and stress are definitely causing the d*. When I have really heavy periods (with LOTS of cramps) I get d* too. For me, the d* sometimes even starts before my period. I always get worried and ask my husband if it's a sv and he always reminds me that it happens every month. Try not to worry that you have a sv - that will just make it worse. I also think you should talk to your doctor. Your hormones are probably a little out of whack. I have an odd question - do you take a lot of ibuprofin? My mom used to take it like candy when she was doing some pretty tough work and got backaches all the time. Because it thins her blood she got massive periods - where she had to change her "stuff" every 20 minutes or so because it was so bad. Her doctor put her on the pill even though my dad was fixed and it pretty much cured the problem. This is pretty extreme, but I had never heard of it happening before so I was just wondering if there really is a connection.