Want To Stop Losing Hair

When I took a shower today, I noticed my hair is getting thinner. I don't know what happened but I used to have a very thick long hair when I was younger. Maybe, I should go see a doctor and ask him if it is okay to use hair loss shampoo. But my mother kept telling me to use shampoo with "aloe vera" since it is a good for thickening hair and may help to regrow hair. Maybe I should try her suggestion first and if it doesn't work, then maybe it is time to seek help from a professional.