Hi Jade,
My view is that you should report your new problems to DWP as soon as possible with evidence from professional where possible. If you don’t know the cause of the problems yet then just report the symptoms and how they affect you together with any extra aids you need due to these symptoms. Get letters of support from anyone, including family, who now helps you in extra ways because of these new symptoms.
Don’t forget to put your Name, NI number, any reference number you have and your date of birth on every page you send and keep a copy.
Regards
Pete
Nothing on this board constitutes legal advice - always consult a professional about specific problems