It is normal for a penis to bend slightly to one side or the other, or up or down, when it is erect. The lack of force during ejaculation could be the result of the position you are in, or it might be that you have not had a long enough recovery period since the last time. As for the lack of feeling, this is often caused by rough treatment – masturbating too hard or too often; this can cause a thickened layer of skin, like the calluses on your hands and feet, which makes it harder to detect touch on the skin. Try taking a break, or changing your technique. You might also want to use a penis health cream (health professionals recommend Man1 Man Oil) with vitamins and moisturizers that can soften the skin and support the growth of new skin cells.
I don't have much feeling in the penis head and it is bent to the left during erection. I also have no force exiting during ejaculation. I have had a prostate exam and it was normal.