Resigning after 2 team members leave

About two weeks ago two team members on my team had just put in their two weeks notice. After I saw the pay increase they got from their new jobs I decided to look. I ended up finding a job that’s 60% more and accepted the offer. I now feel really guilty cause I know I’m going to have to resign as well. I’m the only back up they got and the work is being dumped on me with no raise. Should I feel guilty for leaving? I feel as if I’m fucking over the company and my boss. it’s making me lose sleep. Should I feel bad for leaving ?

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