I Have Been Experiencing Stomach Crampig And I Sweat Profusly

I have been experiencing stomach crampig and I sweat profusly when this happens, usually when I am in the bathroom feeling like i have to have a bowel movement. I have to fan myself and splash water on my face and I evantually go. The bowels are usually soft or diareha with small chuncks and dark brown. This past weekend, though, I experienced muscle weakness and I fell in the bathroom, I could not think straight, my mind went foggy and I could not move. My lips went numb and so did my throat