Breast milk

Is it normal for my 8 monther to not rlly want her milk anymore. I’ve been pumping since the beginning of time and she been happily drinking ever since. Just recently though it’s like she’ll only drink couple ounces here and there. I’ve thrown away more milk now then I ever did. She’s eating solids three times a day with snacks here and there and drinking some water. Idk what to do . How much milk should they be drinking?