Can an infected tooth infect the tongue. and throat. red bumps that bled when picked it. something stuck in throat. sore throat. lump in tongue. im 16?

Yes: It is possible, but i also suggest screen for HIV if you sexually active. If not treated for the infection you mentioned, it can become septic and die. You should see a doctor asap to get a full check up and get treated.

Please see a Dentist as soon as possible. If you have an infection in your tooth it can spread and be dangerous to your health and well-being.