HI, I'm Dr Steve. I am sorry to hear that things aren't going well for you. From your description of the situation and her clinical signs, I think considering rehoming her is a fine option. You have already done some of the basic treatments for problems like this. Calming sprays and extra attention are two of the first things I recommend trying in cases like this. The only other thing that may help would be trying antianxiety medicines. I have used clomicalm. Reconcile and Buspyrone to help reduce anxiety in cats like yours. These are pills that are given once a day and can take 1-2 weeks to see results. Your vet should have access to one of these medicines and if you try one and it helps, then I have clients use them for 4-6 weeks to try to give the nervous cat time to calm down and see if it helps long-term. Of course if you have already decided to rehome, attempting to find a quiet home with perhaps only one or two people would be less stressful for her. I hope this has helped. I will check tomorrow to see if you have more questions. THanks for your question and good luck
I will go to our vet. We can't go through with the re homing process, because we love them too much. We will just have to put up with the fact that she slightly mental!