General downgrade and lack of functionality (RECENT)

This has been really frustrating, GPT4 is struggling to read pdf’s. It also struggles to remember messages only two or three prompts ago. It is also having trouble understanding my questions that it was answering perfectly fine a week ago. Additionally, Every time I ask it a prompt it scans documents??? Why? It looks for non-existent documents I have not uploaded and proceeds to crash.

This is disappointing, considering how great the service was only a week ago. I do not want to cancel, however there is almost no functionality at the moment.