Hi. i can't take ultram due to my allergy of asprin. But my mom in law takes it and it raises her blood pressure up so high her face gets really red. But she already has hbp and cholesterol. My sis'ter gets it for her back pain and one of the side affests was raised bp and nevousness. Mabye that's why it's affecting your dream. I know if i take vicodin before bed I have the worst awful nightmares. Same goes for tylenoyl pm.