Yesterday I found a yellow gym and cleared it (Go Valor!). I dropped my Blissey in the gym, and immediately saw the CP drop 10 points within a minute of placement. I gave it berries all day yesterday and would see a big increase on the first berry, and things diminished after. As I understood it this was normal. When the spin reset (5 minutes) the you could give another berry that would be at the full value.
Flash forward to this morning. My Blissey was at 0 motivation so I ventured out and gave it a couple berries. I ran some errands and on the way home stopped by to give it more. To my dismay, it was only a 30 CP jump. I was put for 20-30 minutes so I expected at least a moderate increase in CP, not 30 points on a 3000+ Max CP Pokémon.
All the other Pokémon in the gym are at max or near max motivation. My Blissey does not show it has been in any battles since yesterday. All the other pokemonin the gym are from accounts lvl 27-32. My account is lvl 37.
So my question is does the CP diminish more on Blissey than other Pokémon? The only other explanation I can come up with is that the owners of the other accounts refuse to feed my Blissey when they maintain their Pokémon. Also has anyone else noticed that the berries are do not reset in a short period of time this morning?