Been on venlafaxine for 3 years. Coming off with doctor support. For this first 4-6weeks tapering down by alternating 150mg and then combined 75mg and 37.5mg tablet every other day. Completely exhausted and now getting a very painful headache. Have started Omega 3 fish oil tablets and also vitamin b complex after researching possible helpful things to take. At the end of week 3 now. Any advise? Thank you.