hi. im on Fluoxetine i take 7.5 ML every morning (dont know how many miligrams that is

) and im thinking maybe its effects are wearing off..i used to be on 2.5 ML then 5 ML each dosage helped abit but eventualy i had to increase..i have been on my current dosage 7.5 ML for about a year and a half possibly 2 years (bad memory

) is my body just becoming immune to the medecine? or is my metabolism consuming it so fast its not having as much of an effect anymore? i really want to know because part of my anxiety at the moment is that maybe one day ill reach the maximum dose of the medecine and it will never work for me again and ill be stuck with my anxiety with no way out and that scares me to death

so if anybody knows and could tell me i would appreciate that