Please call your doctor immediately. I think your symptoms are unrelated to the vicodin and possibly something more serious related to your miscarriage. I'm so sorry you have to deal with complications on top of an already devastating experience.
Sorry for your loss...
I also agree that does not sound like any typical allergic reaction. That would normally be breaking out in hives, feeling like or actually having your throat swell and close, swollen face and/or hands...(That requires more immediate care)
But, we aren't Dr.s here so we are certainly not giving you medical advice.
I would call your Dr. this morning and tell them about your symptoms and let them decide if they need to see you or not or adjust or change your medication.
A miscarriage, just like rupturing ovarian cysts, can cause adhesions to form which cause a lot of discomfort..
Again...it's best to contact your Dr. this AM and let them know..
First off, I am very sorry for your loss. I agree with marycarmel above, that this sounds like something more than an allergic reaction. Do you or have you had a fever at all? I think your symptoms should have eased up by now, and if they have not gotten better by today you should go in to be checked out. I am not a MD, but I would hate for you to have an infection or something. Good luck, and again, I am sorry for you losss. Take care.
It doesn't sound like a typical adverse reaction, but anything is possible I suppose. Whenever we try a new medication (or sometimes even being on one for a while,) there's a chance we can have an adverse reaction ranging from mild to severe. Whenever there's a doubt, always call your doctor immediately or even your pharmacist. (I think pharmacists are often overlooked as a resource, and I have found my pharmacist to be invaluable whenever I have a question about a medication or interactions.)
Benadryl can help with allergic-type reactions, however, it won't really help with severe reactions. Additionally, VIcodin is somewhat short-lived, and it should be out of your system by now.
The symptoms you describe could be related to your miscarriage. Did you have a D & C? I'm happy to hear you have a doctor's appointment for Tuesday. But if your symptoms reappear or you don't quite feel like you think you should, give a call to the office today.
Best of luck. Eleven years ago I had a miscarriage on Christmas Eve. At the time I had 3 small children and was so excited about having another. I never realized just how devastating miscarriages can be emotionally. I am so very, very sorry for your loss.