I kind of want a 3 day mental evaluation. but im worried they will force me to take some drug. i only want to take what i agree to take. suggestions?

Not A Concern: If you voluntarily consent to treatment no one can "force" you to take medication - this is only a possibility if a person is assessed as being in such a dangerous state that treatment is necessary, and in that case there would be a legal proceeding to protect the person's rights. However, if you are concerned about some difficulties, you will want to consider recommendations that are made.

See a psychologist: or psychiatrist. Why do you want this? Start with outpatient tx. Mental eval's can be given without hospitalization or forcing meds on you. Are you worried about the effect of STD's (mentions them in the "Conditions" section of your question)? Sounds like you might have significant anxiety...