I doubt that my response will be helpful to you, however, I hope are able to appreciate my perspective.
At the moment I am earning my second masters degree in Diabetes Education and Management and am certified through the ACSM as a Registered Clinical Exercise Physiologist. For my first graduate degree I studied exercise science and health promotion.I
Professionally, I believe it is a good idea to refer her to someone who truly understands the pathophysiology of both chronic conditions and is better prepared to design an exercise program for that client.
I say this as there is so much to take into consideration such as the medication she is taking and how the medication affects her exercise response.
I encourage you to do as much research as possible on both conditions should you decide to take on this client. This way you won’t have to ask the forum for ideas.
I wish you the best!