I am going to “assume” some things just so I can make some statements. I also assume at this point you do not have ANY health issues because my answers would be different.
I think you are female and I assume overweight as opposed to really, really tall or really muscular. So the first thing I wonder is if you got your levels “higher”, would you lose weight without trying? (I honestly don’t know but some people have reported weight loss.) This could be an experiment. Take 5000iu plus get the same amount of sunshine and see what happens. If nothing changes for you after let’s say 8 weeks, then go to the suggestion below.
We recommend a minimum “healthy” level of 50ng/ml. This is because at levels below 40ng/ml and your risk for cancer and autoimmune disease rises “dramatically”. (For some cancers 60%.) If that does not scare you into taking Vitamin D, then I do not know what will.
So if you could continue with the amount of sunshine you get, you are pretty close to 40ng/ml but knowing the above, then maybe you want to be serious and take your 2000iu minimum each day. If you got NO sunshine, then you should probably take 6-7000iu a day for your present weight. (This is where testing is helpful to really know.)
My compliments to you for testing your levels. Just because someone lives in Florida does not mean they have healthy levels!