We initially went to the Drs together but he passed his memory test, 6 months later I went to the Drs on my own and told him what was going on, he said to tell my husband that we had rung up wanting to do a 6 month check up on him, I took him in and they did another memory test which he then failed so was referred to the Memory Clinic.
When I went to the Drs on my own I had taken pages of things I had noticed but barely told the Dr 4 or 5 things and he said it was concerning.
Make an appointment and tell them what you are noticing