"Gray stool can indicate an problem with your liver, gallstones, pancreas, or a blockage of your bile ducts, etc., all of which can be serious."

Trish is right, absolutely get this checked out ASAP.

As one who has a long history of GI problems, better safe than sorry. It might very well be from all the medications that you were/are taking but either way, it is best to get the digestive issue back on track as soon as you can. Using stool softeners and some laxitives (especially in combination) can cause the most recent symptom you describe of having pressure but not being able to evacuate the bowel. An enema will usually clear it but you would need to get the go ahead from the docs on that, only after they check it out.

Please go in to see your PCP or a walk in clinic today. The ER might not be the best place to go for this.

With love, Erika