Brief Answer:
several possibilities can be there..

Detailed Answer:
Hello XXXXXXX Welcome to HCM,

I've gone through your query and understand your concern,

Now the first possibility for this, after chikungunya is dehydration, for this you need to start hydrating really well, drink plenty of water (3-3.5 ltr) per day along with fresh seasonal fruits and fruit juices(freshly squeezed), plenty of them and observe how you stay in next few days..

Have simple home cooked meals and avoid junk/deep fried foods..

Even if no warm/hot feeling over any other part of the body, still try to record the body temperature to rule out any fever..

If it keeps on persisting despite following them, then please get a repeat CBC with electrolytes done to look in to it further more, and if you observe any persistence of these along with any redness/rash/swelling over any part of the body, then please get yourself checked out by an Internal Medicine specialist for a thorough clinical examination..

Do let me know how you stay in the due course..any further queries are most welcome..

Take Care
Kind Regards

---