Balancing your project workload coupled with your daily routines can be so changing. I've passed through this and i must confess that it wasn't an easy experience. On the other hand, nature can never be cheated as it must fulfil its course. That's the more reasons for the unbalanced feelings and pains. Skipping night rest at when due disrupts the cycle and work of melantonin (the healing hormone that induces sleep) at night.
Pls take a moment to have a nap or deep sleep as it's vital for your heart and brain health. Thank God your project supervisor later extended your presentation. So you need to rest well. I spoke with mum two days ago and it's good to see you're doing great. I guess you must be through with your IT by now if I'm not mistaking. Pls take good care of yourself and stay strong dear @starstrings01.