Has anyone suffer from hair loss?

I noticed I started losing hair gradually over the past two weeks. According to the doctor everything this fine in terms of my blood work. But it doesn’t make sense y would my hair be coming out. I don’t put my hair in tight styles. I started to consider maybe I’m not eating enough. I’m also noticing that my leg hairs are going away. Has anyone suffered from this if so what did u do to get your hair to grow back. Mine is thinning but u can’t tell so my family doesn’t believe me but you know your body.