Clomiphene Absorption

hey, I was wondering if one got some digestion issues (diarrhea) because of caffeine excess and after that take clomid, the absorption will be hindered or something? no, I’m not trolling. I’m just concerned because I can’t find any information regarding this subject.

another question: LH surge/peak after the first clomifene dosage starts when? 3-4 days?

thanks.