Unable to digest food during my menstrual cycle?

I cannot digest food properly - I either get constipation or have to go to the bathroom right after I eat, and it's just not normal. I get bloated and burp, it seems like no matter what I eat. I'm on birth control pills, and I can't remember experiencing any of this prior to starting them. Could it be because of the estrogen levels? Any help is appreciated, google didn't provide any info.
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+1 y
Gross! But it's freaking me out. I feel like I'm on my death bed every time I get it.
Unable to digest food during my menstrual cycle?
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