Kratom also induces quite a bit of anxiety. I find it to be up there with cannabis in terms of potential anxiety. If you mix the two, I imagine that you'll probably have a full-blown anxiety attack at some point even if you're not prone to them. Even without cannabis though, an anxiety attack can easily occur.
Interesting how you say this, I see it as the complete opposite, depending on the strain you use. I find a moderate dose of bali kratom, followed up by a toke of good chronic at the peak provides a buzz better than oxy or hydro IMO. Extremely euphoric, giddy, empathetic, and completely anxiety free. As a matter of fact, this is my go-to on days when I'm feeling especially anxious. Add some kava kava to the mix and I'll forget what anxiety is! All the while not being too inebriated to get things done. I've spent entire days at work on rather strong doses of all three, and am probably more productive in said state. Right now I'm enjoying the effects from 9g bali kratom from this morning, and I'm sipping on some kava as we speak. Anxiety is miles away...
However, thai strains are far more stimulating and less euphoric. Higher doses of thai maeng da certainly make me very edgy, nauseous and jittery.
Half the fun of kratom is trying all the different strains and seeing which one works best for you! Once you find that one strain that outshines the rest, and you find the perfect 'sweet-spot' dosage, kratom will rocketship to the top of your HOC (herbs of choice) list, without a doubt. There's no other legal herb out there that provides this much euphoria!
Kratom sort of has three types of highs that come with it. You either don't take enough and you get nothing, or you take too much and get awful effects, or you get the dose
just right, and get a surprisingly pleasurable high. The problem is that the sweet spot is usually a pretty small window, so it's really easy to under or over shoot it, resulting in less than desirable effects. Kratom's effects do not directly increase with dosage, the effects actually change and go from good to bad in difference of as little as a gram.