I've been on a standing prescription of 240 tramadols/month (as well as a few other meds) for chronic back/neck/hip/muscular/nerve pain since February lol. It doesn't give me any sort of buzz. Maybe the first couple of days I was a little drowsy, but nothing really "recreational." I'm pretty sure if I were to stop using them now I would go into a withdrawal, but for you since you were only on them for two weeks, I wouldn't expect you to have a withdrawal, but if so, not a very bad one. The bad thing about tramadol is that it not only acts on the opioid receptors but it also inhibits the re-uptake of serotonin and norepinephrine, leaving a chronic use susceptible to not only an opioid withdrawal, but an anti-depressant discontinuation syndrome, thus giving a tramadol withdrawal THE ABILITY/CHANCE to be worse and longer than most other opioid withdrawal; however, not everyone will experiences these withdrawals. A tramadol withdrawal for a long-term chronic user has the ability to have acute effects for up a week or longer and the minor effects for up to a month.
I think you're pretty safe though. I don't know exactly how much you were doing each day/your frequency of dosing, but you were only using it for 2 weeks. Hope this helps.
-Doug