Hello. I also have RRMS and thought the same. However after searching many insurance comparison sites i found reasonble prices and was only around £15 more expensive than if i didn't say that I had Ms. Obviously, the costs will depend on how your effected by Ms, what your planning on doing on holiday, and where you go. I looked at the following webpqge to understand different options for insurqnce and ch3cj3d different companies - https://www.moneysavingexpert.com/insurance/pre-existing-travel-insurance/ p.s. i also travelled out of the usual 'brit holiday time' so it may have been cheaper due tot his.

@Col-2009 amazing, thanks!