You simply may need to pop your gallbladder back into action from too little fats over the years. I'm not sure though.
I can't recall the ins and outs of cooking bone broths less time. Sally Fallon recomends days but all the cookign books talk hours. It was discussed ad naseaum on the failsafe site and a few others. I found that I like the broths much better when I do maybe 5-6 hours for chicken and around 12 say for beef. Like put the broth on in the evening and take it off in the morning....which gets harder when you work full time like I do.
Both my hub and I have had sleep problems after long simmered bone broths that I used in stews. Can't tell for sure but don't think my shorter ones have given us problems...least I can't recall them doing that.
I thought it was the ingredients but now I think it the lenght of cooking.