Perhaps bcoz of using Head and Shoulders? I was having good hair which were dense as well as thick and strong some 2-3 years back.. at that time I started having too much dandruff but no loss in quality of hair.. Then I started using Head and Shoulders which got rid of dandruff.. However after some time I encountered hair falling as well as thinning of hair.. I took homeopathic treatment which stopped hair fall to great extent.. I continued using head and shoulders as it seemed the best option 2 prevent dandruff which come back if I stop using it.. But my hair has become thin and sme less dense also.. Few days back I came 2 know that many people reported same things about Head and Shoulders.. So I want 2 stop using it..
Please suggest some good shampoo considering my above history.. Thanks a lot..

Heyy was having same problem and tried lots of shampoos as well.I have recently started Kerastase treatment from L'Oreal and noticed that my hair gained density and vitality after few days. You can give a try :)