Bottom leaf problems, mites?

Hey everybody. I have a seemingly healthy plant going right now but I believe that I might have a problem with spidermites or some other pests. I have accidentally burned my leaves a few times with CFLs so there are a few spots that are pale yellow and crunchy, but now I am noticing little yellow dots on some of my bottom leaves. The top leaves look VERY healthy with no signs of discoloration. I am lead to believe that this is either a lack of light on the bottom leaves because of shadowing (I only have 100 watt CFL from the top) or it could be mites, but dang I really hope not. Sorry for creating a thread just for a diagnosis, but I would rather be safe than sorry.

look underneath the leaves

what strain ? just wondering
its lack of light seems like possibly you need to lst it to better utilize your foot print
i grew for years with cfl's 68 w and up i use atleast 2 68w's per plant but highly lst'd and have for the past few years grown only auto's with cfl's last month added 2 135w led ufo's to the 300 w of cfl's im running and am seeing what i consider amazing results from the addition of a full spec and bloom panel