Hi , I'm 19 Years Old And I Don't If

Hi , I'm 19 years old and I don't If it might've been something I ate but I'll say it anyways. Today I've had a bagel, some juice, lunch was French fries and a wrap with coffee. And now I'm having these cramps and my stomach hurts. Weird headaches and when I went to the bathroom I saw in the underwear that there was this whiteish with a lot hints of purple on my underwear. And when I went to pee it burned a little.