I agree, though this is usually the case with different visas. The student visas require any form of 'work' to be authorized.
Students and Exchange Visitors Students and exchange visitors may, under certain circumstances, be allowed to work in the United States. They must obtain permission from an authorized official at their school. The authorized official is known as a Designed School Official (DSO) for students and the Responsible Officer (RO) for exchange visitors.
http://www.uscis.gov/portal/site/usc...00082ca60aRCRD
What was mentioned before regarding writing etc. is vastly different to what the OP is doing. The OP is carrying out all aspects of the work in the US, and given her 3 months of camming and it being the middle of the school year, it's not outlandish to assume she started camming whilst in the US. (EDIT: Post above confirmed it.) I doubt they would consider it remotely working when none of it was ever carried out in her home country. That is common only when the person was already employed/self employed.
The problem is that she received a visa under the notion that she would be a full-time student who would have already secured the funding she required to live and study in the US. This is why there are such strict controls on employment while studying as a foreigner.
EDIT: I wish you the best of luck in everything, OP, just be careful and make sure you know what's at risk before deciding to continue or stop. :)
I found this, which may help clear up the confusion over whether or not you'd have to pay taxes:
What about taxes?
Unless exempted by a tax treaty, F-1 and J-1 students earning income under practical training are
subject to applicable, federal, state, and local income taxes. Information on tax treaties may be
found in Internal Revenue Services Publication 519, U.S. Tax Guide for Aliens, and 901, U.S.
Tax Treaties.
This of course assumes you've received authorization to work from a designated school official.