Had thrush taken oral tablet and now got thick light brown clumpy discharge coming out, is this clearing out? or abnormal? thanks, female

Maybe not yeast: By "thrush", presumably you mean vaginal yeast infection, right? However, yeast usually causes mostly itching and little discharge, or only a small amount of white discharge. Colored discharge suggests other infections, including STDs if you are at risk (new partner, partner with other partners, etc). Follow up with your doctor for diagnosis and professional treatment. Good luck!