Hello,
These symptoms can be due to telogen effluvium. See the
growth cycle of
hair is in two phases, anagen or
growth phase and telogen or resting phase. During telogen, the resting hair remains in the follicle until it is pushed out by growth of a new anagen hair. In telogen effluvium, a large number of hair enter telogen at one time. When they start growing they do it together and so they will take some time to grow back.