Always feel anxious. sometimes shaky and dizzy from the adrenaline. it's not about anything in particular i just get worked up easily. i always feel on edge and jumpy. taken zoloft 100mg for 10 yrs. can it stop being effective?

It might: If it was effective in the past, sometimes a dose adjustment is needed. Many are experience extra anxiety during this pandemic - probably the best is for your to explore this with the prescribing doctor and a therapist as anxiety also is very effectively treated alone with non drug with therapy, mindfulness, meditation. A free Ap called Insight timer has many great exercises for anxiety