“Is a nuclear medicine technologist a good job?”

This depends on many factors, especially your own interests, but the short answer is, "Yes!." Honestly it is not a very easy job and requires more dedication than average jobs available; however, it pays fairly well, usually does not require weekend or night time work, and since it is a little harder to do, has good job security once you have some experience. The field is rewarding, with more patient interaction than in many other fields and you can see that your efforts are important and make a difference. You are a young woman and the physician supervisors still tend to be men, but you have a risk of men supervising women in many fields and the risks of discrimination or any other inappropriate behaviors toward younger women are much less now than in the past. This is especially so in the medical field where ethical and appropriate behaviors are almost universally required and enforced, regardless of sexual orientations, which I don't add to be offensive, but because studies show a fairly high rate of different sexual orientations among both men and women that may have been just as present historically but are increasingly more recognized and acknowledged.

Any technologist job in radiology is a good job. Most jobs entail some weekend and night call. MRI and ultrasound techs seem to make more. Nuclear medicine has been having a rebirth with new agents and therapies. Go for it.