Congrats on being cig free for 6 days, Bambie! That's a huge accomplishment!
Now, I'm not a doctor (and not trying to diagnose/treat lol) but coughing and headaches are definitely two of the most common side effects from quitting smoking. Besides the nicotine, there are 4,000 other chemicals and toxins in cigarettes that we are addicted to. So even though you may still be getting nicotine with ecigs, you are not inhaling any tar (which makes the nicotine 'stick' to the lining of your lungs, so you start coughing up gross lung junk - it's your body's way of cleaning out your lungs.
Remember to drink lots of water when you're vaping, because it can be dehydrating. That might ease the headaches a bit, but headaches are also a side effect of quitting smoking.
E-juice - my first order was from Vaporium, and although their juices are okay, they are very lightely flavoured. They use the same base for all of them, so without a lot of flavouring they kind of all taste similar.
There are a couple of Canadian vendors that sell sample sizes (3 or 5 ml) for a good price. I found that just because I like the taste of chocolate, doesn't mean that I'm going to like a chocolate ejuice. Also, just because a juice got an awesome review, it doesn't mean that I'm going to like it. So, after spending waaaaaayyyyy too much $$ on buying big bottles of juice only to hate them, I have now learned my lesson and are buying sample bottles. Most of the vendors ship really quickly, so if you buy a sample and you like the juice, order a big bottle and it will be in your mailbox in a few days.
I'll pm you with a couple of places I've dealt with.
As for charging your volt, YES! Get a usb/wall charger and save the pcc for when you're out and about. Saves you from constantly having to charge the pcc. I would also recommend picking up a usb passthrough (an e-cig that plugs into a usb port) if you spend any time on the computer. It runs off the power of your computer, so you never have to worry about charging it, and it's a really good back up if your other batteries are dead.
Here's an example of the Volt usb passthrough.
I've placed about 4 orders from Smokeless Image in the US (no nic, just hardware) and although it takes 10-12 days to get here, it always gets here. I just got another order on Tuesday.
The wall adapter that Smokeless Image sells now will also power the usb passthrough, so you can plug it into the wall and vape!
If you are placing an order from Smokeless Image, check out their diamond end caps. They make the LED super bright and sparkly!
As other people have said, you can also buy Bloog accessories for your Volt, from Canadian vendors.
Cheers!
BTW -