The Polish tennis star was suspended for a month after she tested positive for the banned substance trimetazidine last August and served her punishment in November and December.
Swiatek is eligible to play at the Australian Open but opened up on the "terrible" scrutiny she faced after news of her positive test emerged.
She told the Tennis Insider Club podcast: "It was terrible.
"Honestly, I don’t love tennis that much to feel this bad. If it [were to] happen to me a second time, I don’t know if I would be able to go through this a second time because it was terrible, honestly.
"I couldn’t go on court for two weeks because I felt it was because of tennis that I am in this place. I felt it hit me much deeper than... my ‘athlete’ side. It hit my personal side because I thought everybody would turn their backs on me."
The five-time Grand Slam champion claimed that the people prosecuting her treated her "like a liar".
Swiatek said: "You can be at peace with yourself that you didn’t do anything wrong, but no one actually treats you like that, especially the people that are prosecuting you.
"They want to find that even when you are telling the truth you feel like they treat you like a liar.
"But it’s the law and at the beginning it was hard for me to accept it, but my team told me from the beginning, ‘Don’t expect anything and don’t overthink what the outcome might be, because you literally have no control over this’.
"We just tried to find the source [of the contamination] and we found it, but it wasn’t that obvious. When we had it, we just went through it step by step, proving my innocence and, luckily, they made a pretty rational decision. In the beginning it was really scary.
"I fought so hard for everything the past few years and what if people are going to, in the head, take it away from me? What if they are going to look at me differently?
"I was home at the time and there were a lot of people coming to ask for autographs and take selfies with me. I was like, ‘Are you still going to be doing that in one month?'"
