Identifying WD symptoms versus Side Effects in order to plan Tapering

[Cat416]

I’m challenged with trying to understand when next to cut my dose of Seroquel. 

I began a taper in December 2020 because I was experiencing Akathisia and Tachycardia at 87.5mg. 

In response, my psych lowered me to 50mg from the 87.5mg over the course of a month. 

whike I am in severe WD, the Akathisia is gone. As well the Tachycardia has improved (with a low dose (15mg) Propranolol to help).

 

However, in addition to the classic WD symptoms, I am still experiencing early morning Cortisol spikes with feeling profoundly hung over in the mornings. It lasts until noon everyday. This was similar to how I woke up before my cut. Except this time it’s no longer Akathisia, it’s a feeling of angst and very heavy hangover until about noon by which time I start to recover....until the next day’s repeat pattern.

I am confused as to whether this angst and hangover is still WD or a side effect. I know I still have WD instability but I’m getting to a point where sooner or later I want to cut again.
 

Feeling inbetween a rock and a hard place. How do I judge between side effects and WD so that I can try to get to what is called “Withdrawal Normal”? 
 

I will wait another month but feel I can’t linger for very long as the morning hangover is very severe and debilitating. I need to get off the Seroquel but also don’t want to rush and pay the consequences. 
Any insights to help me distinguish between the two conditions will be gratefully received.