How long have you been taking Paxil? This could be one reason for the fatique and feeling sleepy..Without benefit of knowing your Medical History or any other Meds that you may be taking, I can only advise you to discuss this with your physician..I base this on the assumption that you had been on Adderal for a long time and then changed to Paxil...This could be as simple as changing the medication...There are numerous other drugs that may offer you better results with fewer side-effects....There are herbal meds that make claims of giving the same results as prescribed medication. I do not advocate the use of these , especially if you have been on these types of meds for a long time...As for your weight, this could be do to inactivity because of the way the medication is affecting you...When a patient is sedentary, and does not excersise, then the weight will increase drastically....This is not healthy...Please discuss this with your physician...I sounds like your metabolism has certainly been slowed down by this...Please, keep us posted..Good Luck to you and God Bless....

