Hello Friend, Good that you are seeking a help here. Your party may be just an incidents or trigger that helped you to realize these mental stress. It may not be a reason if you didn't try any drug.
Just observe and analyze what has majorly changed in the recent times on your lifestyle, work environment or job nature, friends circle, relationships or family etc. Any of these could have triggered such emotional stress or anxiety to cause you headaches, nervousness, general weakness.
May be take a professional psychology expert help in carrying out this assessment, so that a suitable solution can be suggested to overcome this problem.
Next Steps
Call me directly or reach out to me online through Practo app for further detailed evaluation and recommendation. Be positive. You will be alright soon.