Yep the same thing happened to me about 12 weeks after I had my DD, they say you dont lose as much hair when you are pregnant and that it falling out is normal once you have had your baby. It does feel like its clumps and it does seem a lot but my hairdresser said its normal. Unless you are getting bald patches then it is nothing to worry about and will calm down soon. I also have very long hair and was always clearning the drain in the shower.