Ditto what cj said. Very possibly the symptoms could be anxiety. It's hard not to want to find an answer for everything we feel, but sometimes, just racking our brains about it makes us more frustrated and anxious. Try not to focus too much on the symptoms...stay distracted, and hopefully they will resolve quickly. I would doubt it's the Zoloft dosing, sounds more like anxiety to me. Hang in there!
In my experiennce with anxiety (I also have taken Zoloft on and off for years), it can have its peaks and valleys....it definitely is not static. In my opinion, we can start to worry or feel anxious at different times and sometimes we look for a root physical cause when many times it could be just our nerves.
Are you also in counseling? For me, the combination of medication and counseling seemed to help me confront and get long term relief from my anxiety.
The heat could possibly causing your body to sweat more excessively and therefore causing dizziness on top of missing your dose.. It might take a few days for body to re-adjust. Keeping hydrated and eating a bit even if you don't feel like it- a piece of toast even. If your symptoms become more severe after continuing to take your medication or at any point- either make an appointment or go to your local walk-in care, just to be sure there is not an underlying issue at Hand. Good luck! :)
Since may. 25mg the first week, 50mg since then.
How long have u been on this med?