Sleepy baby during feeding

Danni

My 4 weeks old keeps nodding off during feeding for 5-10 mins, if I wake her up, she continues to feed for another 5-10, only to nod off again. It’s been going on like this all day. The moment I put her down, she wakes up again mouthing and crying. Is this growth spurts or am I doing something wrong? Help please! 🙏