You need to be seen by a C/R surgeon or GI. If there offices are not open today call anyway. The answering service will get hold of your doctor or the doctor that is on call for him/or her. When they call back explain everything to them.
The medication strength you have is what I take but not with so much tylenol. Youneed to make sure you don't take more than 3,000 or 4,000 of it every day. I believe it's 4,000 you might want to google that.
In any event call the doctors and it doesn't hurt to sound scared or cry a little.
Maybe someone else can post on what you can do at home for a blockage - I don't know what to do with a stoma blockage. I know some people have had scopes or whatever through their stomas. Also could they have done an MRI? I have no idea if that would help but it does not use radiation.
I hope you are feeling better soon. Please let us know how you are doing.