The following advanced imaging techniques are discussed in the text: CT, DSA, PET, ultrasound, and MRI. Which of these techniques uses X-ray?
Which uses radio waves and magnetic fields? Which uses radioisotopes?
Which displays body regions in sections? (You may have more than one
answer for each question.)

take a break move to stretching and slowly work back into physically exercising if the problem continues go to a doctor or physical therapist

if your boyfriend is cheating on you, my best advice to you is to dump him, he's only going to drag you down. and if you do, don't fret there's plenty better that know how to treat a person right. i mean honestly, the whole point of a romantic relationship is love, and if you love someone you aren't going to cheat on them. i do believe in second chances, but why would he cheat in the first place? i personally feel that if someone cheats, they ruin any chance they wanted/had with you. i wish you the best of luck with this, hang in there.

9, 5, 10000000 ( that is supposed to be a ten for the last one)