Hey buddy, I'm so glad to hear you're feeling better. I was confident that you were experiencing a bump in the road (so to speak) earlier when you were stating that it seemed like the Paxil had messed up most or all of the improvements in your LTC symptoms that you had experienced, and that it would go away soon. And it sounds like it has, so that's fantastic! And thank God that it appears I wasn't wrong, but I digress.
With respect to Paxil dosages, I believe dosages range from 10mg to 30mg (in 10mg increments) - at least when it comes to the IR (instant release) formulation. Other formulations may vary significantly.
During the short time that I was taking Paxil, I was only ever on 20mg. As stated however, it was only for a short amount of time - about 2 weeks if I recall correctly. And I had to stop because of a dangerous side effect.
The majority of my first-hand experience with SSRI medications is from Zoloft (Sertraline). I was started on 50mg, then went up to 100mg after a month (from what I remember).
Anyways, with respect to your thoughts on dosage, 10mg of Paxil is considered a low dose. Whether you think you may benefit further from an increased dosage is something that would be better left between you and your doctor.
Edit - I will say however that when I increased my dosage of Zoloft from 50 to 100mg, I felt it was the right choice to make because many of my LTC symptoms improved far more rapidly afterwards.
That being said, if you do end up increasing your dosage to 20mg, chances are that the nasty side effects which you experienced will return. The probably won't be as severe as the first time, but they will definitely be noticeable until your body ends up becoming acclimated/used to 20mg instead of 10.
The dosage change opinion is based on my experience with Zoloft, and when I went up to 100mg from 50. As the dosage increased, the side effects which I felt when first starting the medication returned for a like 3 weeks. They weren't as severe as the first time around, but definitely there and bothersome at times.
Therefore, be prepared for the temporary return of the same nasty side effects you felt initially if you do up your dose.
There is also a (probably very small) chance that you may experience some side effects which weren't felt at 10mg of Paxil - the possibility is there however.
Also, be sure to keep in mind that the higher in dosage you go, the more difficult it will be to stop using the medication whenever you feel you are ready to stop completely.
I hope that answers your concerns and questions. If I missed something, please let me know as I'm doing 10 things at once.
Take care and have a good one