Just finished biog. of Joan Sims 'Too Happy Face" **(surprised there is no thread for her), and she was a complex lady, with hang-ups and lots of worries, especially her weight in later years, which was exacerbated by her taking to the bottle and smoking heavy, AND it wasn't helped by her OTT snobbish mother (who thought she was above everyone else), who would make Joan's life a misery every time she tried to find love, and her mother slagged off ANY man she went out with as not being good enough for her daughter.
This all got worse after her very close friends Kenneth Williams and Hattie Jacques died.
** This refers to her outwardly jolly appearance that she thought held her back with serious parts, although she did a fair amount in her life, which also made her a money worrier, even though she was reasonably well off, although she thought she could have been a lot richer from the many, many repeats and residuals from the Carry On films, which was a bug-bear with most of the Carry On stars; BUT as was pointed out by Peter Rogers, they were all offered shares or one off fees, with them all preferring a fixed fee, so had no room to complain many years later, though this did leave much bitterness between the stars and producers.