Day 4 after 1st chemo/immunotherapy treatment , yesterday first day I had problems with knee and leg pain could...

October 3, 2026Navis AI

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For informational purposes only

This answer was generated by AI grounded in NCCN guidelines and published medical literature. It is not medical advice. Always consult your oncologist or care team before making treatment decisions.

Sources & medical oversight

  • Built by OpenCancer’s team of physician-scientists and cancer survivors.
  • Last updated October 3, 2026. Informational only — not a substitute for your oncology team.

Question asked:

Day 4 after 1st chemo/immunotherapy treatment , yesterday first day I had problems with knee and leg pain could hardly walk, been awake all night unable to sleep, today pain is now in my toes and feet also tingling sensation in hands and fingers, any advice appreciated 😊

I'm sorry you're experiencing these symptoms - that sounds really uncomfortable, especially so early in treatment. I want to be clear that these symptoms need prompt attention from your healthcare team, so please contact them today if you haven't already.

Why This Matters - What You're Describing

The symptoms you're experiencing - pain moving from knees/legs to feet and toes, plus tingling in hands and fingers - could suggest peripheral neuropathy (nerve-related symptoms) or other treatment-related side effects that need evaluation.

Important context: Some chemotherapy and immunotherapy drugs are known to cause nerve-related side effects, and these can develop during or shortly after treatment. The pattern you're describing (pain + tingling in extremities) is something your oncology team needs to assess directly.

What You Should Do RIGHT NOW

Contact your cancer care team today - don't wait for your next scheduled appointment. Most cancer centers have:

  • On-call nurse lines available 24/7
  • Urgent care protocols for new symptoms during treatment
  • Same-day or next-day appointment availability

When you call, mention:

  • Exact timeline (started yesterday, Day 4 post-treatment)
  • Location of pain (knees → legs → feet/toes)
  • Tingling in hands and fingers
  • Sleep disruption from pain
  • Any other new symptoms

Why This Timing Matters

According to ASCO (American Society of Clinical Oncology) guidelines on managing chemotherapy side effects, early reporting of neurological symptoms allows your team to:

  • Assess severity and cause
  • Adjust medications or treatment if needed
  • Start supportive care (pain management, physical therapy, etc.)
  • Prevent progression

Questions to Ask Your Care Team

  1. "Could these symptoms be related to my chemotherapy/immunotherapy?"
  2. "Do I need to be evaluated in person or can we discuss this by phone today?"
  3. "Are there medications or treatments that can help with the pain and tingling?"
  4. "Should I be concerned about the progression from legs to feet to hands?"
  5. "Is there anything I should avoid doing (walking, exercise, etc.) until we figure this out?"

In the Meantime

  • Don't ignore it - early intervention is key
  • Document it - note when symptoms started, where they are, what makes them better/worse
  • Safety first - be careful with mobility if pain affects your balance
  • Sleep support - ask your team about safe pain management options to help you rest

The National Cancer Institute (NCI) emphasizes that managing side effects early and aggressively improves treatment tolerance and outcomes, so reaching out now is exactly the right move.

This information is for educational purposes only. Always consult your healthcare team for personalized medical advice and decisions. Please contact your oncology team today about these symptoms - they need to evaluate you directly.

Wishing you relief soon. 💙

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