You are smart to slowly build back your fitness before resuming training at the level you were at before getting sick. Your strength will come back with in 2-3 workouts. If you didn’t do any strength work during this 10 day resumption then I suggest doing a mini session with 90% of the wight you were at before you got sick. AS for beginning the ME workouts, I recommend pushing those back 10-14 days. At least till you feel that you have resumed you previous level of aerobic and strength fitness.