ive noticed my hair seems to be falling off constantly. while i am taking a shower, i find that when i go through my hair to apply shampoo, 5-10 (at the least

) strands of hair comes off EVERY TIME. so when i do it again, the same thing happens. in addition, i seem to find a lot of hair on my bed. When i comb,strands of hair also comes off. I asked my parents and they said its only because my hair is long, when it is only medium to short length. When my hair is wet, my scalp is clearly visible in lines and streaks.I am using Tresemme shampoo for normal hair (7x veces) and Garnier fructis fortifying conditioner
Am i losing hair?
<PLEASE> help...