Not sure if you this could apply to your T, but my T in the last few months started having snacks like a yogurt or fruit during our sessions. Initially I thought she was doing some sort of exposure therapy because I have such issues eating in front of people, but she recently just told me she was 5 months pregnant and then referred back to the times she was snacking in session and that was why. She always asked if I minded or if it offended me before she did though. Maybe there your T is pregnant or has some other health concern that she needs to eat for?