DD (3.3 with GDD/SLD, not ASD) seems to have developed a sudden dislike of night-time driving. We don't do it often, but whenever we do, she spends the entire journey crying, relaxing only when we sing to her. She also hates being on trains (I think this is a noise thing, as she seems scared of the train itself as it approaches the station). Again we don't travel by train often enough for her to get used to it. She doesn't react in this way in any other circumstances, possibly because in other potentially overwhelming situations (crowded places, shops, restuarants) we can remove her or distract her more easily.
Anyone experienced similar...? She isn't able to express what she is feeling in words or signs and I hate seeing her so upset and being unable to help.
OT didn't seem to have any useful advice to offer.