Saw your SOS message elsewhere
We used almost no toys at that age, I have to say. Definitely never anything that lit up or (eeeeek) made noises. LO was really happy lying on the floor/rolling about in a quiet room watching the world going by, walking around with me (indoors or out) and looking at stuff, looking out the window, watching me fold laundry, or cook. He loved to go to the shops - in the carrier! In fact, my touchy love inspired me to get rid of the TV entirely and we haven't had one since (5 years ago now). I always talked him through everything we were doing, I think that helped him relax, maybe the sound of my voice?
Getting the routine right was important for my touchy one, and he was pretty much in line with textbook times for his age. The thing was he needed a long wind-down, and to start with patting while in the cot.
Fire questions at me if you like
There's lots of info on the thread if you have time to read back. As he got older, I read the Highly Sensitive Child by Elaine Aron, and it is him to a tee. But I think Tracey was one of the few 'baby experts' to recognise such sensitivity in small babies.