Dealing with Chronic Pain and Self-Doubt

For a majority of my early adulthood and teen years, i’ve dealt with chronic pain, dizzy spells, asthma, joint paint, and the works. Today I finally got myself a mobility aid. It’s a rollator, or sitting walker, and i feel burdened by it. I feel like i don’t “need” it. I look fine. I’m not diagnosed with anything that I think would make me need it. I’m worried i dropped the money on it to never use it, and when i do use it i’m going to look stupid and like i’m looking for attention. All my life i’ve just dismissed my problems like my parents have taught me to. Ever since reaching adulthood i have been taking care of myself in ways i feel like i should. But i can’t help but doubt every little thing.