And you should run this by your OB, just to be safe.
Not sure about an electric type of feeling but I think Helen's thought on a nerve issue sounds about right.
Since, Im pretty sure my baby has dropped (I goto the OB on Wed and then Ill know for sure) I have been feeling like a surge of pressure on my bladder every now and then. Maybe you feel this b/c your baby has dropped?
Below is from babycenter.com on dropping
"It's impossible to say precisely when your baby will "drop" or descend into your pelvis, because every pregnancy is unique. If this is your first baby, this process, which is also called lightening, is likely to occur several weeks before labor begins, though it may happen later. For subsequent pregnancies, lightening often doesn't occur before labor starts.
You may find that you feel a little different after your baby has dropped. Some pregnancy complaints may get worse, while others may improve. On the one hand, your baby will be taking up more room in your pelvis, so you'll probably find that you have to urinate even more often than before. You may get an uncomfortable feeling of pressure deep in your pelvis, feel increasing discomfort when you walk, and even begin to waddle a bit.
On the other hand, with less pressure on your stomach, you'll be able to eat a little more without feeling uncomfortably full, and if you've been suffering from heartburn, you may get some relief. You'll probably find that breathing feels easier, too.
While lightening isn't a predictor of when labor will start, it is a sign that your body's getting ready. It's normal to feel lightening up to four weeks before your due date. If you feel an increase in pelvic pressure or the sensation that your baby is "pushing down" before then, call your healthcare provider so she can evaluate you for preterm labor."
Sounds like you may be having some nerve pain. Unfortunately it's pretty common at the end of the pregnancy.
Hugs!