Here is a basic explanation and symptom checklist of mania vs. clinical depression.
I think if you were really experiencing mania, your pdoc and you would probably know it - take a look, mania usually includes all these basic symptoms, not just a few, and it isn't just for a few days; more like weeks, months, and frequently years at a time. The depression is the same, never for just a couple of days. Unless mixed episodes, which are not very common, in which mania and depression both occur alternately throughout the day. These are the cases of the most suicides in bipolar.
Like I said, unless you are truly bipolar, Lamictal is not shown to be effective against clinical depression; the symptoms of BP depression and clinical depression are similar, but actually work differently. The rash is called Steven-Johnson's Syndrome and can be deadly if not caught right away, it actually eats the skin away, I know it is gruesome, but it is EXTREMELY rare, and almost never happens if the medicine is gradually increased. If it does the meds are stopped immediately and is always curable. Therapeutic dose is about 200 mg, you need to start at 25 mg and increase by 25-50 every 7-10 days. It does take a while, but very worth it! It has saved my life.
Also, I can (almost) assure you that you are not bipolar, or you wouldn't be sane with Zoloft, especially at that dose. It causes mania in bipolars and that class of antidepressants are not (usually) successfully used, especially without a mood stabilizer.
Symptoms of Bipolar Disorder
Bipolar disorder differs significantly from clinical depression, although the symptoms for the depressive phase of the illness are similar. Most people who have bipolar disorder talk about experiencing "highs" and "lows" the highs are periods of mania, the lows periods of depression. These swings can be severe, ranging from extreme energy to deep despair. The severity of the mood swings and the way they disrupt normal life activities distinguish bipolar mood episodes from ordinary mood changes.
Symptoms of mania - the "highs" of bipolar disorder
Increased physical and mental activity and energy
Heightened mood, exaggerated optimism and self-confidence
Excessive irritability, aggressive behavior
Decreased need for sleep without experiencing fatigue
Grandiose delusions, inflated sense of self-importance
Racing speech, racing thoughts, flight of ideas
Impulsiveness, poor judgment, distractibility
In the most severe cases, delusions and hallucinations
Please get back, I am interested to hear what you think.