ESA to UC. `Caring for someone' section, online claim form - help please?

Hello, First of all, thanks for reading this. I am in ESA support group, and have been for 15 years. I will soon be attempting the online application to move from ESA to UC. I would like some advice on the section 'Caring for someone.' My mother has been diagnosed with Alzheimer's, and I spend 10-20 hours a week looking after her. Sometimes it is less, and sometimes more than those hours. It is not a regular number of hours each week. Some of the descriptors are accurate. I do help with; Cooking and cleaning, Driving to appointments, Helping fill in forms or complete tasks online, Organizing medication, Etc. If I tell the DWP about this, how will it affect my claim for UC? Can inferences be drawn from this admission? If I am 'fit' enough to look after my mother, might I then be fit enough to look for more 'paid work' as a Carer? (Sometimes, looking after my mother can be rewarding. Other times, it has made my medical condition worse, and has made me very ill. I have not worked as a carer previously and have not been trained for it.) Where are the DWP going with this line of questioning? Forgive my paranoia (part of my condition) it can lead to a certain myopia, where I can't see the wood for the trees. It might be the DWP are trying to help. I can't see that admitting I spend an indeterminate (much less than 35+ hours per week) amount of time looking after my mother is going to help me if I am not eligible for Carers Allowance already. Any perspective on this would be welcome, Thanks again to readers, moderators, and anybody responding to this. Droopy. Possible relevant detail: my mum has been diagnosed with Alzheimer's, but is not registered disabled. Also, I do not live with her.