Will I face any issues entering Thailand again after previously working there on a Non-B visa?

Hi everyone! I've been coming to Thailand for a few decades and a bit worried because of the number of stamps/visas that I have.

I was working there for 6 months and had a work permit and Non-B. When I finished the contract I got an ED visa straight after and stayed for 5 months before returning back home. Now I've been away 7 months or so and wanting to visit Thailand for 6 weeks or so (visa exempt).

Can anyone tell me would I be getting any trouble because I worked there earlier? The reason for this is that I know you are not supposed to seek employment when in Kingdom on a tourist visa (which I had before getting the teaching job). Otherwise I have always done everything correctly, no overstays or any other horseplay.

I would appreciate any help =)

EDIT, everything went fine today. The immigration seemed very busy at Suvarnabhum and it looked like they wanted to keep the pace up also so no extra questions.