Hopefully you can get in touch with your Dr tomorrow. He should have no problem calling in a small scrip until it's time to get you other one filled. When ever you see a new Dr it's best to go over your scripts right there in the office just in case there's a mistake. I hope you get everything figured out tomorrow. Good for you for getting off the morphine. From what I know about this med it can be very hard to quit. I don't think any of us likes having to take meds in the first place, we just do not want to be in unbearable pain.
He/she also may have given you the lesser quantity to start weaning you off because you said you wanted to, so that might also be the reason for less meds. Good luck to you either way.
Usually if you want to take over the counter meds, it's okay to ask your doctor or pharmicist (who *knows* all the other prescriptions you are taking) for advice on what kinds of 'extras' you can take. Most of us (on this forum) are not doctors and don't know all the meds you are taking, so it probably wouldn't be right to tell you what's okay and what's not.
But, my goodness, I do feel your pain. You are calmer than I would be -- I would be on the phone saying, "Please call the doctor at home and have him call me...nowwwww."
Just my two cents.
Also, this might not make you happy.... but the fact that you stuck with the 7.5mg without complaining MAY cause someone to say, "Well, you seemed to do okay on the 7.5's, otherwise you would have called us sooner." (We, here, know your reason, but unless you explain as clearly as you did here, they may not. Just be prepared for that :-)