What are you feeding her?  I would recommend getting some KMR (kitten
replacement milk) to give her as well as her regular food.  There is a product
that you can get at health food stores called Colostrum (it's not cheap though)
that comes in capsules.  You can add one capsule to a very small dish of milk
and then stir it in.  Colostrum helps the immune system.  Also, worming
medicaiton is hard on the system, so that could be making her tired as well.  I
would keep your eye on her and if you don't see improvement in a couple of
days, I would call the vet to let them know.  Here's a couple of links you
might be interested in:

http://www.bovinecolostrum.com/articles/article27.htm

http://www.colostrum-health.com/pets.htm

http://www.preciouspets.org/newsletters/021604.htm

Lauren
________
See my cats:  http://community.webshots.com/album/56955940rWhxAe
Raw Diet Info: http://www.holisticat.com/drjletter.html
http://www.geocities.com/rawfeeders/ForCatsOnly.html
Declawing Info: http://www.wholecat.com/articles/claws.htm

circa Fri, 11 Jun 2004 15:43:36 -0400, in rec.pets.cats.health+behav,
MadHatter (devil_m@y_care.lost) said,

In addition to what Lauren said, bear in mind that anemia can really
sap her energy.

This is from felinecrf.org, but it?s a description of the signs of
anemia:

Signs of anaemia include:  

Nausea
This is quite common in anaemic cats; other causes include stomach
acid and high phosphorus levels.

Lack of Appetite
This is very common in anaemic cats; see stomach acid and high
phosphorus levels for other possible causes.

Feeling Cold
Your cat may seek to lie in warm places, and/or may be hunched up in
an attempt to keep warm: this is commonly a sign of anaemia.

Lip Licking
This is more commonly associated with stomach acid, but in some cats
it may be a symptom of anaemia.

Pale Gums and Eyelids
This occurs in anaemia because the blood flow to the skin is reduced.

Lethargy
This is caused by lower levels of oxygen in the blood which in turn
is caused by anaemia.

Weakness, especially in the back legs
This is very common in anaemia; Thomas became unable to jump on the
bed. See also low potassium, metabolic acidosis and high phosphorus.

Heavy breathing and wheezing and fast heart rate
These may be related to a heart condition or to high blood pressure,
but anaemia may in itself cause heart problems and high blood
pressure: your vet can determine which came first.

Eating Litter/Licking Concrete
This is known as pica. Many vets are not aware of this symptom in
relation to CRF-induced anaemia, but if a CRF cat suddenly starts
eating litter, PCV levels (anaemia measurement)  should always be
tested. Thomas was already being treated for anaemia when he began to
eat his litter. Sure enough, when we tested him, his anaemia had
worsened, so we increased his medication and as soon as his anaemia
improved his litter eating stopped.
Very occasionally, licking concrete is a sign of a calcium
deficiency.

Also from felinecrf.org:
? What is Anaemia?
Anaemia is a condition in which not enough red blood cells exist in
the body. Red blood cells transport oxygen round the body, so if a
cat does not have enough, he/she will not be able to function
properly and will feel very tired and weak; other symptoms are
discussed below.  Red blood cells are produced in the bone marrow and
last for around 70-80 days in cats.?

Basically, it?s really not surprising that your kitten is lethargic
since she?s anemic, and you shouldn?t expect that to clear up
instantly as her little body has to make more red blood cells first.

Laura