It looks like it is trying very hard. Stress causes masses of flowers; the plant thinks it is dying and tries to make seeds (fruits). Water it carefully and give it a shot of foliar food and a little Nitrogen in the soil (urea, ammonium nitrate, ammonium sulfate, etc. If you give a Meyer... which this clearly is... too much N when it is blooming, it tends to drop the flowers and produce leaves. Only after all the flowers have fallen, give it some balanced citrus food and then take off any tiny lemons that have formed; they will only steal the energy the plant needs to recover. Re-pot to a bigger pot only after new leaves and branches begin to sprout. BTW, if you post this on the citrus forum, you will get lots more help.

It sure has a lot of flowers!

It can't be entirely moribund.

Look up 'Al's Gritty Mix' recipe and plant it in that mixture in a larger,fiberglass pot (or plastic).

Thanks everyone, this is great advice! I've posted in Citrus now.

Here is a link that might be useful: Citrus Post

On the Cloud Forest website,they are either recommending Foliage Pro or Azalea fertilizer for Citrus.They said there isn't a decent Citrus fertilizer out there. Brady