poorly camellia

Hi all! I am hoping I can get some help for my camellia. The leaves and flower buds are slowly turning brown and dying. It is planted and has been cared for properly so it isn't the soil or the water and I see no signs of any pests on it. Any ideas? Thanks in advance!!

 

Hello catztail
I have the same problem . My camellia is 7 years old in a container , and after this winter , no flower buds and the leaves are also going brown and curling . Is there any chance of recovery for Catztail's and my Camellias

TIA