Hi, Ria -
Yes, the shakiness, thirst and upset stomach are typical for lithium, as is the "cobwebs" in your brain! It is normal not to feel like yourself, it will change that somewhat. It takes a definite period of adjustment to acclimate to the medicine.
Your doc switched you to klonopin because it's not quite as sedating as valium - valium is also a powerful muscle relaxer and can be quite fatiguing. Klonopin is the sedative of choice for BPs, it is an anticonvulsant (like most mood stabilizers) and does a better job on anxiety. It is in the same class as valium (benzodiazepines) and they are all addicting if abused. Take as directed or when you are anxious, but no more.
If you can't tolerate the side effects, ask to try something different, there are other stabilizers out there.
Do you take your lith with food? If I don't take my Lithium with food, I suffer great nausea. And drink lotsa water-the symptoms always seem worse when I don't, besides, you don't want to go toxic.
I know what you mean about the water thing, I am a big fan of juice, not so much water. However, because I have gained so much weight, I drink less juice, low calorie drinks, and force myself to drink water. I will buy a 1L bottle and set the goal to drink for the day-my drug guide suggests 2500-3000ml fluid per day, that's alot for me! But anyhow, other fluids count, it is just that water is best for you. With lithium, there is a very fine line between a dose that is "helping" and a dose that is "too much". A dose that is too much builds up in your system and is therfore toxic to you. Have you had blood tests to see what your lithium level is at? There are many things that can affect your lithium levels such as dehydration, diarrhea, vomiting,other medications such as ibuprofen, and salt intake. Anyhow, not to be scarey, but knowledge is power, I like to know my drugs. If you google Lithium you'll find lots of info! Most pharmacies can also give you a print out explaining the drug,etc.
Agitated, anxious, and lethargic. Well, it could be a couple of things, perhaps if psychnurse reads this she can also help. It could be a mixed episode where you suffer symtoms of depression and hypo/mania at the same time-that agitated but depressed feeling at the same time. Depression alone can also cause agitation, anxiety and lethargy. Hard to say.What are your meds? Doses? How long have you been on them? I do know what you mean though, I seem to be all over the map as well, although things are starting to slowly stabilize. However, I am still increasing my lithium to the "helping" levels, so it si a slow process. My advice I guess is one day at a time. Keep putting one foot in front of the other, and remember the good days. And as psychnurse always says, keep in contact with your pdoc and keep them aware of changes. So for today, respect your bodys need for rest and hang in there. (what have your moods been like so far?)