Is it normal to feel pressure in your head and chest when you push to help yourself poop?

Constipation: Straining during constipation increases intracranial and intra abdominal pressure . Increased pressure is not optimal. If there is a familial predisposition to aneurysms or connective tissue disorder like Ehlers Danlos, marfans there is additional risk. Try stool softeners, or 1/2 cup to 1 cup prune juice , and a diet w/ fiber -avocados, strawberries, sweet potatoes to avoid strain. f/u/ w/ MD