Please Help! (Anxiety) Please help.

For last few I masturbated too often say almost every day. Now I feel a tingling/throbbing sensation at the shaft of the penis sometimes when I walk or sit on a chair and almost everytime feel like I am getting aroused at totally non-sexual things like seeing an animated movie or reading a book or even random words..this is happening a lot and to check I often watch explicit content but somehow don't have a satisfactory erection which is worrying me. Sometimes the throbbing/tingling is not felt but these intrusive arousals are felt which are irritating and are also causing bad dreams or doubt of sexual orientation(I am heterosexual since birth,never attracted to same sex) for which I cannot sleep peacefully. Please help.