There are lots of organisations that can assist you further:
Health.com – Medial Alert Systems
Hapai Foundation – The Hapai Access Card
Health Navigator – Books, videos, apps and other tools to help you manage your long-term condition(s).
Multiple Sclerosis Society of Canada
International Progressive MS Alliance
Mastering Mountains Charitable Trust
National MS Society (USA)
Overcoming Multiple Sclerosis (OMS)
MS Trust (UK)