Any possible link between digestive issues and increased sweating? I.E. If one is constipated, maybe sweats more? Or is there no relation? Thank you

Can happen. Conditions that cause discomfort can trigger nonspecific stress hormone & Adrenalin release that can result in more sweating. Constipation falls into that category. I have seen a rare patient with true stool retention problems that developed body sweats & a 103 temp that disappeared after an enema.