Here's a big mess for you

:
I have been having a pretty bad week at work; not horrible, but a huge contrast to the peace of not working last week. Nevertheless there is this huge mental pleasant feeling that bubbles up occasionally throughout the day. I have been sitting a lot in the half lotus position, and my knees are starting to hurt a little bit, but that's beside the point.
Yesterday in the afternoon, I listened to Ajahn Brahm's talk on the Upakkilesa Sutta, and at the end of it, I started to feel this strong feeling akin to tiredness, but different in that (1) I wasn't actually tired, meaning I hadn't missed any sleep or been up too long or anything like that, and (2) it didn't have the subtle achiness that real tiredness comes with. The "pleasant tiredness" I'm referring to is exactly the feeling I would get when cycling through the nanas after SE: I would be out and about doing something, then the "pleasant tiredness" would start, and then, whenever I got the chance, I would sit down and close my eyes, and within a few seconds or minutes, there would be a cessation, after which I would get up happy and energized. Well, yesterday I had the same "pleasant tiredness" and decided to lie down. I don't remember what happened next, but about an hour and a half later, I found myself still lying on my back. I got up and noticed that, even though it was 91 degrees (I try to avoid air conditioning whenever I'm alone), there was no sweat, which is not typical for me. I wasn't thirsty either.
A few hours later, as I was getting ready to actually go to sleep, I felt an almost overwhelming, but at the same time subtle mental happiness. It's like there's nothing to my life except for (1) the stress/suffering we (working laypeople) call normal and (2) a deeply rooted happiness. Whenever neither of those two are present, I don't even really exist, but there's just some almost automatic patterns playing themselves out, such as urinating, brushing teeth, eating, teaching intermediate algebra

, sitting, hearing, seeing, walking. I guess the way I could clarify the "not really existing" is that I'm not emotionally invested at all.
I woke up 2 hours early this morning from a work-related nightmare, so I had my meditation session earlier than usual. There was a lot of thinking, but my mind is somehow learning to separate a still core from
everything else, including the excessive thinking, the restlessness, anxiety, even involuntary physical movements caused by the stress. All of that is viewed sort of like you would view a little cut on your finger: Yes, it's there, and you can see and feel it, but it doesn't really matter much. You just try to keep it reasonably clean and let it be.
As I was sitting there today, applying more energy than before to staying somewhat mindful and not getting carried away in all these thoughts, after a while a blue circle on a black background appeared. My kasina from a couple of months ago! I had never before seen this kasina this clearly with my eyes closed. That was kind of neat. I noted the "neatness" (mental pleasure) more than any other aspect of the experience.
I'm probably going to take a few more months to evaluate, but if the situation stays like this, I'm going to seriously start looking at ordination or at least living at a monastery.