Thanks for your question on Healthcare Magic.
I can understand your concern.
Anti tubercular drugs will show maximum therapeutic effect when taken together at the same time.
So better to take all anti tubercular Drugs at the same time.
No need to worry much if you have not taken these drugs on different time for 2 days. 2 days won't make any difference. But better not to repeat this mistake and take all anti tubercular Drugs together.
For your swollen lymphnode, possibility of tubercular lymphnode enlargement is more because you are already having
pulmonary tuberculosis.
But to confirm this, you need to get done fine needle aspiration cytology (FNAC) from the lymphnode.
If it is tuberculosis then continue same treatment.
Don't worry, you will be alright.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.