What is like to feel when taking trifluoperazine hcl? I want to know what you feel after taking it?

Hi, Sultan!
The most common side effects are drowsiness initially but this is usually temporary as you adjust to the medication.
Your best bet is to thoroughly acquaint yourself with the drug, it's uses, and potential side effects. Don't be terrified when you read about side effects... they are only potential and most people have few if any.
These links should help:
https://www.drugs.com/sfx/trifluoperazine-side-effects.html
https://www.drugs.com/mtm/trifluoperazine.html
Regards and if you have more questions just post again!
Wildcat