Your body seems to be saying that was a big drop from 3 25 to 2 25. My guess is you should have just taken 2 every second or third day then increase the number of 2 and decrease the 3 so your average amount slowly reduces. At this point I would try a few 3 to see if you feel ok then start a patterned reduction to get the average down. Or if you can cut them maybe do a 2.5.
I assume your psychiatrist is not easy to access right now, otherwise you could get more advice from him. Did he not give you any suggested reduction pattern?
The two hardest drugs by far to stop taking are Effexor and Paxil. So you need to go off of them in the safest way, which is as slowly as you need to. There are people out there who have taken over a year to taper off this drug (and off of Paxil), There's no rush, in other words. On the other hand, some people have no problems at all, and others have a few bad weeks and then they're fine. What you don't want is anything that becomes protracted. I would say your taper should be suited to how you react to going down. If it's really really hard see if there's a liquid version of it that you can really taper down slowly off of. So you're talking about days, and as far as I'm aware from all the psychiatrists I've seen over years of this stuff the minimum taper is six weeks, but that too is a generalization -- it can still take a lot longer for some people. I'm rather surprised you were put on Paxil while still on Effexor and even more surprised you only got night sweats -- these are two mighty powerful drugs. I see this, though, as a positive for you -- the fact your body is strong enough to feel better on these two drugs means you're pretty strong. I feel confident if you just slow it down to a more responsible pace you will get through this. And this is just me, but I'd start looking for a new psychiatrist -- taking two drugs that target serotonin at the same time, especially these two strong drugs, can be dangerous. And he doesn't seem to know much about how to withdraw from these drugs. There are some good books out there about safe withdrawing and how variable it is with different people. But again, man, if you can take Paxil and Effexor at the same time and be feeling good, you're going to be fine. Something that might help the nausea is ginger. Something that can help with brain zaps is fish oil.