@ECBG , I think what you are seeing is all of us who have dealt with issues you are expressing you have whether ourselves our with our families. As a result we see massive red flags that should be addressed to determine what in fact the issue is, if anything.
The ER does in fact do more than what you say if they see something going on. They run tests to see what the issue may be and if necessary admit you; if not, release you. No harm. So maybe you wait a few hours for absolutely nothing; on the other hand, maybe they find you have something going on that needs to be treated and will make you feel better.
But this is all a choice you need to make. If in fact it is just a matter of being unsteady on your feet and you have a reasoable explanation for the swelling that doesn't need checking, and in fact your morning voice is such that makes it difficult for people to understand, and the other things you have mentioned, only you know that, and your family are the ones who actually are with you and see you and know what's going on.
Anyway, I wish you well and hope you can get the home PT there soon to be able to get you back on your feet.