Here's an update.

I left the plant alone for 2 whole days without watering after that flush. Things were looking a little better, so I decided to give it some more water (I always wait till the top soil is dry and put my finger into the soil to see if it's wet below). Since it wasn't "wet" (rather barely humid) I decided to give it some water with a minuscule amount of SuperThrive (about a drop a gallon).

Then things kept going worst. Now the first node (the round leaves) are completely yellow (which I read it's normal). But the next node (with the first serrated leaves) is now almost completely yellow (except in the part really close to the stem where the leaves get a little shade from the top leaves, it's still a little green). The yellowing of these leaves did not start at a specific point really. They kind of just became yellow all around. But I don't think that's normal because they have the biggest surface area and thus the highest chance for the plant of getting light.

The top node is still growing and it's still coming out, but I want to fix the problem before it gets un-fixable for the top leaves.

At least the top leaves are a little greener than before (BARELY) but are STILL droopy!! WHY??? What am I doing wrong? Do you think it's the MG?

I am worried pH might be too low but have not checked it again since that previous flush. Would soil pH of 6 be too low? If so how do I increase it? What else could it be??

I am going insane!! Please help!!!