Grats Bats! If it's a boy name him Bruce Wayne, if it's a girl name her Barbara Gordon.
And Helf, I wouldn't worry about it. I drop 10lbs a month in July and August particularly working the patio. That's the upside of doing physical work, the pounds come off fast. Have you been hydrating regularly and getting enough salt? All that sweating takes it out of you and simple dehydration can lead to the symptoms you describe. I'm constantly pounding water on the job.
Love those both those image links today. Long past due to end the asinine War on Drugs.