I have irregular cycles have not had more than spotting since march until today! i have been getting a burning sensation when i pass a clot is that ok?

Burning?: It's common to have a very heavy period after going so long without one. You really should not go longer than 10-12 weeks without a period. If you go longer than that you can increase the risk for precancerous changes. You should see a doctor to come up with a plan to avoid this happening. Clots generally should not cause burning, though can cause cramps. You should just go get checked!