What happened to my singing voice?

A few years ago i was a chorus boy i used to sing all the time and lately i noticed my singing is off by a lot i can't hit notes and i crackle. I am 14 however i was wondering if my voice getting deeper has anything to do with me no longer being able to sing? Or did i mess up my vocal chords by singing to much? help me please.

Why should the national government have unlimited powers of taxation?

What do you think? Do you think it's irrelevant to today's society as compared back when the Federalist Papers were created? Just curious.

Im looking for the name of a book, which is a series, that has a teen genius and a fairy underworld...?

It is the Artemis Fowl series. Artemis Fowl is a 12 year old millionaire who wants to restore his family's fortune. And his greediness forces him to connect to the fairy underworld.

Is cisco a good stock to buy?

I see that Cisco is going to lay off tons of people? Do you think that this is a good time to buy? I mean with all the lay-offs the profits should increase? I was doing some research and I found this site a href="http://www.tradersbase.com/" rel="nofollow"http://www.tradersbase.com//a I have been reading there for awhile. There is an article by Mike on the site (I think it is the first one) about Cisco. He has stock in it and seems like he is going to keep it. Thanks guys - any advice is appreciated.

Question for Immunology brainiacs?

So, I am currently taking a course in Micro and we are covering the raw basics of the immune system. Today in lecture we learned how "pain" is caused by the destruction of RBC's which subsequently release bradykinins, prostaglandins, etc., which lower the pain threshold. Does this mean that if RBC's did not release these pain factors, even thought they were destroyed, that we would technically not feel pain? In other words, is it purely the release of these proteins that causes what we perceive as pain rather than the injury itself?

Spotting and the Birth Control Pill?

I've been taking Yasmin for about 3 years. My gyn told me I could skip the placebo pills and continue with the active pills in order to avoid my period some months. I've done this two months in a row (my last period was in mid-november). Well, now I've had brown discharge since before Christmas. I called my gyn, and the nurse said it's just my body adjusting to the pills. I had a gyn appointment right before this started and the pap smear was clean. Should I be worried?

Why did John Kline release clified Information to the press?

Why did John Kline who is a member on the Intelligent committee release clified security information to the press after being brief behind close doors.Should these republicans be prosecuted for putting partisan politics before this country security ?