I started a new diet about month and a half ago. My docter perscribed me phentermine to help with the weight loss. I havent been eating any greasy foods or any sweets. Yesterday was my step daughters b-day so I had a couple scoops of ice cream. After about 20 mins i felt extream cramps and had to go to the restroom. My stomach contracted on its own. After i was finished i had thought i had saw blood. After a quick look i noticed about 15 bright red kidney bean looking objects. They almost looked rubber. What is going on??