Just got back from 2 weeks in the states yesterday. my 90 day reporting was due April 20th. I asked the immigration at the airport if my stamp and info will suffice for my 90 day reporting and he said I need to go to immigration and do the 90 day report. I read here that the airport stamp will do but I dont want any problems with my retirement visa at jomtien immigration which is due for renewal July 6. Do i need to do the reporting?

thanks in advance

Your next report date will be 89 days after your return. Which will be the middle of July sometime.

A fresh 90 days started the day you returned to Thailand. By leaving Thailand you reset the clock and the clock starts ticking again from day one the day you re-enter.