The first card is the Nine of Pentacles. This card represents the importance of taking care of one's health and emphasizes that health is a fundamental building block for personal happiness. Here, the Nine of Pentacles indicates that you are thinking about taking care of your health and getting a thorough medical checkup.
The second card is the reversed Knight of Pentacles. The Knight of Pentacles represents the need to take matters into our own hands and act urgently. Here, this card indicates that you have a very strong desire to take care of your health and feel motivated to do something about it. You are ready to act and take matters into your own hands.
The last card is the reversed Three of Swords. This major arcana represents the importance of tackling difficult problems with strength and determination. Here, this card indicates that you are ready to make tough choices to improve your health and take care of your well-being. You are weighing the risks and benefits of getting a thorough medical checkup.
In light of these three papers, it sounds like you're definitely set on getting a thorough medical checkup. The cards indicate that you are thinking seriously about the importance of health, feeling a strong urge to take matters into your own hands and be ready to face any challenge that has to do with your health. Therefore, yes, you should get a thorough medical checkup to make sure you're okay.