Not the OP, but for what is worth I also get motion sick while riding the bus and sitting at the same time. The solution is to just not sit, I use one hand to grab the bus bar or whatever those things are called and the other hand to hold a magazine or pocket-sized book. The same goes for tramways or trolley-buses. Interestingly enough I can read just fine and sitting at the same time while riding a train.

I used to get pretty motion sick too, especially growing up, but now I'm able to read novels fine on the bus and that thing feels like the wheels are square. Maybe a tolerance builds, who knows.

No, it's regular MTA service, not the greatest but gets me from point A to point B. I always pay attention to something other than the ride so I'm having a good time..