Hey @Mrs5K. I’m probably going to repeat some of what has been said already but, hopefully my experience will be of some help.
I applied for PIP when I got home from hospital (April 2021) and it took me and my hubby approx 2 weeks to complete the form - this was due to me typing my responses for each section on my phone beforehand (as I couldn’t write very well due to the affects of the stroke to my right side) and also as my hubby was then copying it all on to the form for me.
I didn’t have very much supporting info to provide then as I’d only just been discharged so, the only letter I could send was my discharge summary but, I did provide all of my therapists and consultants details so the DWP could, if needed, contact them directly.
After applying I read online that, on average, PIP claims take 12-16weeks! So, I wasn’t expecting anything anytime soon, however, I didn’t actually get any communications until October, this was a phone call to go over some of the information I had provided, then, shortly after, I received my award letter in the post (I am in receipt of PIP and I got a backdated payment from the date I applied).
Although it took a (shockingly) long time, I would definitely say persist with it if you can. Be patient and do take your time with the form. When completing it, write all of your answers based on your worst day(s) rather than your good ones, make copies of the form and any supporting documents you send (so you can refer to it at a later date if necessary). Get help from your local CAB or welfare rights team if you feel you need it, they have volunteers who specialise with PIP claims as well as the very clear and concise info available on their website (help with appeals too).
Unfortunately, the DWP don’t tend to send updates once you’ve applied, only to confirm receipt and frustratingly, they won’t tell you anything on the phone but, please don’t feel disheartened by the wait and/or if you don’t receive any news.