Good to hear you are coming back. You have been dealing with this for 20 years you know the general sequence. Having good support is essential and you have it.
I had a client who had MS and sometimes I would see her in a wheelchair and O2 and sometimes she came in walking. She was a pastor's wife and active in the Church. She told me one time that they were having a woman's retreat but she wasn't sure she would go because of her current condition. Two weeks later she told me that one of the ladies said that she would be at the retreat "even if I have to tow your wheelchair behind my car"!
That kind of support is good to have as you go through life with MS.