Misterzero
1. I'm sorry but it is impossible to say, you could ask the DWP.
2. They may have contacted your GP or other medical contacts.
3. Regulation 34 is simply the reference in the ESA legislation that links to the Support Group criteria.
It is likely that once it was clearly determined that you clearly met the criteria for Coping with changes (question 14) the assessor and DM felt no need to continue looking at the other questions.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems