Thanks for that. Good point about "unless the cardiologist has been on it". We've already had him skip the intense version of Mission Space. Even though there are no restrictions from cardio or neuro "at this time", I feel like we're waiting for the other shoe to drop. We will keep him off R&R.
Would you say that R&R and MS are the roughest rides in the parks? That would be my guess.
Both of them are very intense.
MS (the green version that does not spin) is still very rough and it has the element of scaring you (don't want to give anything away, but there are some tense moments when your 'mission' is in danger. I would not do the more intense (Orange version); it adds the whole ride spinning to the roughness, so it would have the same effect as the fair ride that Mary wrote about.
R&R has drops and things, but it is a smooth ride (you are in a limo, after all, rushing to a concert).
For roughness, I would rate Dinosaur at AK as rougher and it also has a high scare factor (get the adrenalin going). It is
very rough and jerky. There are also a lot of times when your ride car is going slowly and then abruptly speeds up or turns in another direction - all with the possibility that you might be 'turned into dinosaur food' or 'crushed/burned' by an asteroid. Probably not much in terms of G forces though.
Primeval Whirl at AK is one that is deceptively rough. It looks like a tame little roller coaster, but it also spins randomly. I got my tag from describing it ("It's like combining the teacups with a roller coaster" in red under my signature - thank you, Tag Fairy).
Tower of Terror at the Studio also has a high 'make you sick' factor. your elevator drops at a faster than gravity speed and then is pulled up again. The pulling up and dropping cycle repeats several times - just how many is random. While you are falling and then being pulled up, you have a certain amount of air time when your body and the elevator are moving at a little different speeds. I don't know what the G forces are, but it seems like that might be a problem.
Star Tours at the Studio is quite rough, with a lot of changing direction, but probably little G forces.
If there are any you are concerned about, talk with the CM at the ride entrance. You may be able to arrange for one member of your party to check out the ride and give an opinion on whether it seems OK or not. I would suggest choosing your person carefully though. My DH rode Mission Space Orange version and R&R and said they were 'nothing', so I would not use his opinion. I would send my older DD on (but she is a ride wimp). Her DH is a good victim (I mean test subject) to trial rides and give an objective opinion.
to you and DD...I feel for you. On top of everything else, it's so hard to balance being too careful and wondering if you're being careful enough, isn't it? 
