Post ASD Diagnosis and Benefits Applications advice.

Hey all.

I have recently received my post ASD assessment through the NHS and looking for some advice on how to apply for PIPS etc.

I have the support letters detailing my ASD diagnosis.  Can I use other info when applying for PIPS such as

- Copy of my medical records detailing IBS, possible OCD symptoms, past bouts of depression and anxiety.

- Therapists letter stating when I started talking therapies (CBT and ERP)

What other info could I use to back my claim?

I have either worked or studied all my adult life.

I have never applied for benefits before as I have only been recently diagnosed with ASD (42 year old Male).

Any info would be great.

I would like to say again how great it is to be part of this community. 

Thanks all