I have an upset tummy. since saturday night. i am now using gastropect and smecta. i need a doctors note for work. do i need to go to a gp?

NOTE means exam done: A doctor can write a note after doing an in-person exam. Generally, doctors do not write notes such as work-excuse or school-excuse notes, or back-to-work or back-to-school notes, without an exam. That is because a doctor's note is his written, signed, professional opinion, on whether a patient can or cannot do a particular activity. An in-person exam gives confidence to the doctor's opinion.

I suppose: We don't offer them here. This is a public information site where volunteer docs answer medical questions when you describe the problem. We don't diagnose, treat, or write notes. These are things that require direct doctor contact since you are using the note to verify an illness. Many companies consider it a firing offence if they cannot verify that you had doctor visit (they call).