Pip

Mar

hi I have a question hopefully someone can help me with. I am 64 years old and I am due to receive my state pension March 2019. My partner 68 claims for us both and we get  pension credit. 
 
We have both been successfully migrated from DLA to pip both on standard daily living.  We are applying for severe disability credit at the minute. 

I am confused what happens when I reach pension age do I loose other benefits like housing benefit and council tax? Which we get paid for us just now. 

Can anyone advise  use me on this. 

Mar