Rollator PIP

Hello, I am completing Q14 moving around. Mobility is the main part of my claim and this is the first time I am applying. To be able to walk indoors I use a zimmer frame. If I need to be on my feet outdoors for more than 10-15 minutes I have to use my wheelchair issued by NHS. I am describing that I can walk less than 20 metres due several pain, discomfort and dizziness. I am also saying that when I am able to walk I do it slowly and have to stop in order to rest. The reason I will answer that I can walk "Less than 20 metres" is because as soon as I start to walk I have severe discomfort, pain and fatigue. I have noticed the days the pain is not so severe are the days I am more fatigued. This happens around 4 to 5 days per week. Even if I could walk 100 metres or more I have to stop to rest, I have to sit down. I cannot carry on trying to walk when I am feeling dizzy. It takes me 4 minutes to the front door until the point I am sitting down inside the car while my husband, who doesn't have mobility problems, walks the same distance in 20 seconds! My condition makes me walk more than twice as slowly as someone without my health issues and mobility restrictions. I cannot drive because of my condition or use public transport because I am in constant risk of falling. My back and hips are constantly aching however, after walking between 15 to 20 meters the pain will increase and I have severe discomfort. I have to pay double attention to kerbs and uneven surfaces because of the instability of my feet. I also have a rollator for the days when I can bear the pain and the distance is small. I also have a stick but I don't feel ready to use it yet. I would like to know if these reasons could help my claim as I am already thinking about appealing and if a rollator is considered an aid for PIP please. I could not find the answer on the forum. Many thanks, Isabela