My last t also had the beginnings of MS. she said no email or calls on Sunday (to all clients) so she could rest. It took her several days to respond as it was.

WIth my current t, she doesn't check messages until around midnight and sometimes calls back the next day. If it is urgent, she also knows that I am up until about 11:30 pm so she has called once at 11:30 and once at 9:30 pm. but she doesn't like to call late. She doesn't often return calls just out of sheer lack of time. Sometimes she will return emails.

Another venue is the GoodSamaratins -you can call or if you have 12-24 hours time to wait you can email.
best to you!!