My Mother has fibromyalgia very severely and she has lots of backaches caused by it. She drinks way too many diet cokes, and the more she drinks the more backaches she gets. Could diet cokes be causing her fibromyalgia-caused backaches to flare up? I need to know because her aches keep getting worse. Can you all help me?

My mother told me the other day to stop drinking so much diet coke and diet pepsi. I’m 21 years old. It is my favorite beverage and I drink diet coke’s or diet pepsi’s about once a day. I usually have three or four diet cokes or diet pepsi’s once a day. My mom said it is not good for my bones. Is what my mom told me is it true? Is diet coke or diet pepsi bad for your bones?