Constipation

Little background: I have absent seizures and am diagnosed with complex migraines. Due to this, some of my medications stop me from going number 2. My doctors just tell me to take laxatives but nothing seems to work. I also hate taking medication with a passion so I would really appreciate any natural tips! I’m highly allergic to cinnamon so please nothing involving that. Also magnesium seems to make me more constipated. I also always try to poop with my legs propped up, as recommended. Anything helps! Thanks!