I just wanted to give you all some hope. After having had DLA/PIP for over 20 years, in January this year after re-assessment, I got 0 points and lost ALL PIP.
The Healthcare Professional lied and got her commission.
I took it to tribunal (on paper) and am delighted to say that tribunal says I qualify for enhanced rate daily living and enhanced rate mobility! The only negative is that they wouldn't change the length of the award, so in 16 months I will be going through this all again, which is ridiculous because I am 65 and won't get better. I have severe OCD.
SO, don't give up. Do take it to tribunal and good luck.