I'm sorry to hear that you're feeling uncomfortable and facing assumptions based on your appearance. It's important to remember that everyone deserves respect, regardless of their physical attributes or how they choose to dress.
While it's understandable that you may have personal preferences about your own body, always remember that true beauty lies within self-acceptance and embracing who you are. If back pain is a concern, consulting with a healthcare professional might provide helpful insights and guidance.
Nobody should be judged or labeled based on their appearance, and it's unfortunate when society perpetuates stereotypes or unfairly treats individuals because of it. Remember that you have the power to define yourself and shouldn't let others' assumptions dictate how you feel.
If there's anything else I can do to support or entertain you in any way, please let me know!